Adding custom initialization method to model constructor (#1898)

Samples/azure-storage/Azure.CSharp/Models/CheckNameAvailabilityResult.cs

@@ -13,7 +13,10 @@ namespace Petstore.Models
         /// Initializes a new instance of the CheckNameAvailabilityResult
         /// class.
         /// </summary>
-        public CheckNameAvailabilityResult() { }
+        public CheckNameAvailabilityResult()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the CheckNameAvailabilityResult
@@ -34,8 +37,14 @@ namespace Petstore.Models
             NameAvailable = nameAvailable;
             Reason = reason;
             Message = message;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets a boolean value that indicates whether the name is available
         /// for you to use. If true, the name is available. If false, the name

Samples/azure-storage/Azure.CSharp/Models/CustomDomain.cs

@@ -14,7 +14,10 @@ namespace Petstore.Models
         /// <summary>
         /// Initializes a new instance of the CustomDomain class.
         /// </summary>
-        public CustomDomain() { }
+        public CustomDomain()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the CustomDomain class.
@@ -28,8 +31,14 @@ namespace Petstore.Models
         {
             Name = name;
             UseSubDomain = useSubDomain;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets the custom domain name. Name is the CNAME source.
         /// </summary>

Samples/azure-storage/Azure.CSharp/Models/Endpoints.cs

@@ -13,7 +13,10 @@ namespace Petstore.Models
         /// <summary>
         /// Initializes a new instance of the Endpoints class.
         /// </summary>
-        public Endpoints() { }
+        public Endpoints()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Endpoints class.
@@ -28,8 +31,14 @@ namespace Petstore.Models
             Queue = queue;
             Table = table;
             File = file;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets the blob endpoint.
         /// </summary>

Samples/azure-storage/Azure.CSharp/Models/Resource.cs

@@ -13,7 +13,10 @@ namespace Petstore.Models
         /// <summary>
         /// Initializes a new instance of the Resource class.
         /// </summary>
-        public Resource() { }
+        public Resource()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Resource class.
@@ -30,8 +33,14 @@ namespace Petstore.Models
             Type = type;
             Location = location;
             Tags = tags;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets resource Id
         /// </summary>

Samples/azure-storage/Azure.CSharp/Models/StorageAccount.cs

@@ -14,7 +14,10 @@ namespace Petstore.Models
         /// <summary>
         /// Initializes a new instance of the StorageAccount class.
         /// </summary>
-        public StorageAccount() { }
+        public StorageAccount()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the StorageAccount class.
@@ -28,8 +31,14 @@ namespace Petstore.Models
             : base(id, name, type, location, tags)
         {
             Properties = properties;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "properties")]

Samples/azure-storage/Azure.CSharp/Models/StorageAccountCheckNameAvailabilityParameters.cs

@@ -11,7 +11,10 @@ namespace Petstore.Models
         /// Initializes a new instance of the
         /// StorageAccountCheckNameAvailabilityParameters class.
         /// </summary>
-        public StorageAccountCheckNameAvailabilityParameters() { }
+        public StorageAccountCheckNameAvailabilityParameters()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -21,8 +24,14 @@ namespace Petstore.Models
         {
             Name = name;
             Type = type;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "name")]

Samples/azure-storage/Azure.CSharp/Models/StorageAccountCreateParameters.cs

@@ -17,7 +17,10 @@ namespace Petstore.Models
         /// Initializes a new instance of the StorageAccountCreateParameters
         /// class.
         /// </summary>
-        public StorageAccountCreateParameters() { }
+        public StorageAccountCreateParameters()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the StorageAccountCreateParameters
@@ -30,8 +33,14 @@ namespace Petstore.Models
             Location = location;
             Tags = tags;
             Properties = properties;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets resource location
         /// </summary>

Samples/azure-storage/Azure.CSharp/Models/StorageAccountKeys.cs

@@ -12,7 +12,10 @@ namespace Petstore.Models
         /// <summary>
         /// Initializes a new instance of the StorageAccountKeys class.
         /// </summary>
-        public StorageAccountKeys() { }
+        public StorageAccountKeys()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the StorageAccountKeys class.
@@ -23,8 +26,14 @@ namespace Petstore.Models
         {
             Key1 = key1;
             Key2 = key2;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets the value of key 1.
         /// </summary>

Samples/azure-storage/Azure.CSharp/Models/StorageAccountProperties.cs

@@ -9,7 +9,10 @@ namespace Petstore.Models
         /// <summary>
         /// Initializes a new instance of the StorageAccountProperties class.
         /// </summary>
-        public StorageAccountProperties() { }
+        public StorageAccountProperties()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the StorageAccountProperties class.
@@ -64,8 +67,14 @@ namespace Petstore.Models
             CreationTime = creationTime;
             CustomDomain = customDomain;
             SecondaryEndpoints = secondaryEndpoints;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets the status of the storage account at the time the operation
         /// was called. Possible values include: 'Creating', 'ResolvingDNS',

Samples/azure-storage/Azure.CSharp/Models/StorageAccountPropertiesCreateParameters.cs

@@ -10,7 +10,10 @@ namespace Petstore.Models
         /// Initializes a new instance of the
         /// StorageAccountPropertiesCreateParameters class.
         /// </summary>
-        public StorageAccountPropertiesCreateParameters() { }
+        public StorageAccountPropertiesCreateParameters()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -22,8 +25,14 @@ namespace Petstore.Models
         public StorageAccountPropertiesCreateParameters(AccountType accountType)
         {
             AccountType = accountType;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets the account type. Possible values include:
         /// 'Standard_LRS', 'Standard_ZRS', 'Standard_GRS', 'Standard_RAGRS',

Samples/azure-storage/Azure.CSharp/Models/StorageAccountPropertiesUpdateParameters.cs

@@ -10,7 +10,10 @@ namespace Petstore.Models
         /// Initializes a new instance of the
         /// StorageAccountPropertiesUpdateParameters class.
         /// </summary>
-        public StorageAccountPropertiesUpdateParameters() { }
+        public StorageAccountPropertiesUpdateParameters()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -31,8 +34,14 @@ namespace Petstore.Models
         {
             AccountType = accountType;
             CustomDomain = customDomain;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets the account type. Note that StandardZRS and PremiumLRS
         /// accounts cannot be changed to other account types, and other

Samples/azure-storage/Azure.CSharp/Models/StorageAccountRegenerateKeyParameters.cs

@@ -11,7 +11,10 @@ namespace Petstore.Models
         /// Initializes a new instance of the
         /// StorageAccountRegenerateKeyParameters class.
         /// </summary>
-        public StorageAccountRegenerateKeyParameters() { }
+        public StorageAccountRegenerateKeyParameters()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -20,8 +23,14 @@ namespace Petstore.Models
         public StorageAccountRegenerateKeyParameters(string keyName)
         {
             KeyName = keyName;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "keyName")]

Samples/azure-storage/Azure.CSharp/Models/StorageAccountUpdateParameters.cs

@@ -17,7 +17,10 @@ namespace Petstore.Models
         /// Initializes a new instance of the StorageAccountUpdateParameters
         /// class.
         /// </summary>
-        public StorageAccountUpdateParameters() { }
+        public StorageAccountUpdateParameters()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the StorageAccountUpdateParameters
@@ -28,8 +31,14 @@ namespace Petstore.Models
         {
             Tags = tags;
             Properties = properties;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets resource tags
         /// </summary>

Samples/azure-storage/Azure.CSharp/Models/Usage.cs

@@ -13,7 +13,10 @@ namespace Petstore.Models
         /// <summary>
         /// Initializes a new instance of the Usage class.
         /// </summary>
-        public Usage() { }
+        public Usage()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Usage class.
@@ -32,8 +35,14 @@ namespace Petstore.Models
             CurrentValue = currentValue;
             Limit = limit;
             Name = name;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets the unit of measurement. Possible values include: 'Count',
         /// 'Bytes', 'Seconds', 'Percent', 'CountsPerSecond', 'BytesPerSecond'

Samples/azure-storage/Azure.CSharp/Models/UsageName.cs

@@ -12,7 +12,10 @@ namespace Petstore.Models
         /// <summary>
         /// Initializes a new instance of the UsageName class.
         /// </summary>
-        public UsageName() { }
+        public UsageName()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the UsageName class.
@@ -25,8 +28,14 @@ namespace Petstore.Models
         {
             Value = value;
             LocalizedValue = localizedValue;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets a string describing the resource name.
         /// </summary>

Samples/petstore/CSharp/Models/Category.cs

@@ -11,7 +11,10 @@ namespace Petstore.Models
         /// <summary>
         /// Initializes a new instance of the Category class.
         /// </summary>
-        public Category() { }
+        public Category()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Category class.
@@ -20,8 +23,14 @@ namespace Petstore.Models
         {
             Id = id;
             Name = name;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "id")]

Samples/petstore/CSharp/Models/Order.cs

@@ -11,7 +11,10 @@ namespace Petstore.Models
         /// <summary>
         /// Initializes a new instance of the Order class.
         /// </summary>
-        public Order() { }
+        public Order()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Order class.
@@ -26,8 +29,14 @@ namespace Petstore.Models
             ShipDate = shipDate;
             Status = status;
             Complete = complete;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "id")]

Samples/petstore/CSharp/Models/Pet.cs

@@ -20,7 +20,10 @@ namespace Petstore.Models
         /// <summary>
         /// Initializes a new instance of the Pet class.
         /// </summary>
-        public Pet() { }
+        public Pet()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Pet class.
@@ -36,8 +39,14 @@ namespace Petstore.Models
             PhotoUrls = photoUrls;
             Tags = tags;
             Status = status;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets the id of the pet.
         /// </summary>

Samples/petstore/CSharp/Models/Tag.cs

@@ -11,7 +11,10 @@ namespace Petstore.Models
         /// <summary>
         /// Initializes a new instance of the Tag class.
         /// </summary>
-        public Tag() { }
+        public Tag()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Tag class.
@@ -20,8 +23,14 @@ namespace Petstore.Models
         {
             Id = id;
             Name = name;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "id")]

Samples/petstore/CSharp/Models/User.cs

@@ -11,7 +11,10 @@ namespace Petstore.Models
         /// <summary>
         /// Initializes a new instance of the User class.
         /// </summary>
-        public User() { }
+        public User()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the User class.
@@ -27,8 +30,14 @@ namespace Petstore.Models
             Password = password;
             Phone = phone;
             UserStatus = userStatus;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "id")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureBodyDuration/Models/Error.cs

@@ -18,7 +18,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureBodyDuration.Models
         /// <summary>
         /// Initializes a new instance of the Error class.
         /// </summary>
-        public Error() { }
+        public Error()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Error class.
@@ -27,8 +30,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureBodyDuration.Models
         {
             Status = status;
             Message = message;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "status")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureBodyDurationAllSync/Models/Error.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureBodyDurationAllSync.Models
         /// <summary>
         /// Initializes a new instance of the Error class.
         /// </summary>
-        public Error() { }
+        public Error()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Error class.
@@ -26,8 +29,14 @@ namespace Fixtures.AcceptanceTestsAzureBodyDurationAllSync.Models
         {
             Status = status;
             Message = message;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "status")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureBodyDurationNoSync/Models/Error.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureBodyDurationNoSync.Models
         /// <summary>
         /// Initializes a new instance of the Error class.
         /// </summary>
-        public Error() { }
+        public Error()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Error class.
@@ -26,8 +29,14 @@ namespace Fixtures.AcceptanceTestsAzureBodyDurationNoSync.Models
         {
             Status = status;
             Message = message;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "status")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/ArrayWrapperInner.cs

@@ -19,7 +19,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the ArrayWrapperInner class.
         /// </summary>
-        public ArrayWrapperInner() { }
+        public ArrayWrapperInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the ArrayWrapperInner class.
@@ -27,8 +30,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         public ArrayWrapperInner(IList<string> array = default(IList<string>))
         {
             Array = array;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "array")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/BasicInner.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the BasicInner class.
         /// </summary>
-        public BasicInner() { }
+        public BasicInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the BasicInner class.
@@ -32,8 +35,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
             Id = id;
             Name = name;
             Color = color;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets basic Id
         /// </summary>

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/BooleanWrapperInner.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the BooleanWrapperInner class.
         /// </summary>
-        public BooleanWrapperInner() { }
+        public BooleanWrapperInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the BooleanWrapperInner class.
@@ -26,8 +29,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             FieldTrue = fieldTrue;
             FieldFalse = fieldFalse;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "field_true")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/ByteWrapperInner.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the ByteWrapperInner class.
         /// </summary>
-        public ByteWrapperInner() { }
+        public ByteWrapperInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the ByteWrapperInner class.
@@ -25,8 +28,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         public ByteWrapperInner(byte[] field = default(byte[]))
         {
             Field = field;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "field")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/Cat.cs

@@ -19,7 +19,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the Cat class.
         /// </summary>
-        public Cat() { }
+        public Cat()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Cat class.
@@ -29,8 +32,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             Color = color;
             Hates = hates;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "color")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/CatalogArrayInner.cs

@@ -19,7 +19,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the CatalogArrayInner class.
         /// </summary>
-        public CatalogArrayInner() { }
+        public CatalogArrayInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the CatalogArrayInner class.
@@ -28,8 +31,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         public CatalogArrayInner(IList<ProductInner> productArray = default(IList<ProductInner>))
         {
             ProductArray = productArray;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets array of products
         /// </summary>

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/CatalogArrayOfDictionary.cs

@@ -19,7 +19,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the CatalogArrayOfDictionary class.
         /// </summary>
-        public CatalogArrayOfDictionary() { }
+        public CatalogArrayOfDictionary()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the CatalogArrayOfDictionary class.
@@ -29,8 +32,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         public CatalogArrayOfDictionary(IList<IDictionary<string, ProductInner>> productArrayOfDictionary = default(IList<IDictionary<string, ProductInner>>))
         {
             ProductArrayOfDictionary = productArrayOfDictionary;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets array of dictionary of products
         /// </summary>

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/CatalogDictionaryInner.cs

@@ -19,7 +19,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the CatalogDictionaryInner class.
         /// </summary>
-        public CatalogDictionaryInner() { }
+        public CatalogDictionaryInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the CatalogDictionaryInner class.
@@ -28,8 +31,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         public CatalogDictionaryInner(IDictionary<string, ProductInner> productDictionary = default(IDictionary<string, ProductInner>))
         {
             ProductDictionary = productDictionary;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets dictionary of products
         /// </summary>

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/CatalogDictionaryOfArray.cs

@@ -19,7 +19,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the CatalogDictionaryOfArray class.
         /// </summary>
-        public CatalogDictionaryOfArray() { }
+        public CatalogDictionaryOfArray()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the CatalogDictionaryOfArray class.
@@ -29,8 +32,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         public CatalogDictionaryOfArray(IDictionary<string, IList<ProductInner>> productDictionaryOfArray = default(IDictionary<string, IList<ProductInner>>))
         {
             ProductDictionaryOfArray = productDictionaryOfArray;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets dictionary of Array of product
         /// </summary>

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/Cookiecuttershark.cs

@@ -20,7 +20,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the Cookiecuttershark class.
         /// </summary>
-        public Cookiecuttershark() { }
+        public Cookiecuttershark()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Cookiecuttershark class.
@@ -28,8 +31,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         public Cookiecuttershark(double length, System.DateTime birthday, string species = default(string), IList<FishInner> siblings = default(IList<FishInner>), int? age = default(int?))
             : base(length, birthday, species, siblings, age)
         {
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Validate the object.
         /// </summary>

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/DateWrapperInner.cs

@@ -19,7 +19,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the DateWrapperInner class.
         /// </summary>
-        public DateWrapperInner() { }
+        public DateWrapperInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the DateWrapperInner class.
@@ -28,8 +31,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             Field = field;
             Leap = leap;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonConverter(typeof(DateJsonConverter))]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/DatetimeWrapperInner.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the DatetimeWrapperInner class.
         /// </summary>
-        public DatetimeWrapperInner() { }
+        public DatetimeWrapperInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the DatetimeWrapperInner class.
@@ -26,8 +29,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             Field = field;
             Now = now;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "field")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/Datetimerfc1123WrapperInner.cs

@@ -20,7 +20,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// Initializes a new instance of the Datetimerfc1123WrapperInner
         /// class.
         /// </summary>
-        public Datetimerfc1123WrapperInner() { }
+        public Datetimerfc1123WrapperInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Datetimerfc1123WrapperInner
@@ -30,8 +33,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             Field = field;
             Now = now;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonConverter(typeof(DateTimeRfc1123JsonConverter))]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/DictionaryWrapperInner.cs

@@ -19,7 +19,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the DictionaryWrapperInner class.
         /// </summary>
-        public DictionaryWrapperInner() { }
+        public DictionaryWrapperInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the DictionaryWrapperInner class.
@@ -27,8 +30,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         public DictionaryWrapperInner(IDictionary<string, string> defaultProgram = default(IDictionary<string, string>))
         {
             DefaultProgram = defaultProgram;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "defaultProgram")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/Dog.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the Dog class.
         /// </summary>
-        public Dog() { }
+        public Dog()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Dog class.
@@ -26,8 +29,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
             : base(id, name)
         {
             Food = food;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "food")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/DoubleWrapperInner.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the DoubleWrapperInner class.
         /// </summary>
-        public DoubleWrapperInner() { }
+        public DoubleWrapperInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the DoubleWrapperInner class.
@@ -26,8 +29,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             Field1 = field1;
             Field56ZerosAfterTheDotAndNegativeZeroBeforeDotAndThisIsALongFieldNameOnPurpose = field56ZerosAfterTheDotAndNegativeZeroBeforeDotAndThisIsALongFieldNameOnPurpose;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "field1")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/DurationWrapperInner.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the DurationWrapperInner class.
         /// </summary>
-        public DurationWrapperInner() { }
+        public DurationWrapperInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the DurationWrapperInner class.
@@ -25,8 +28,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         public DurationWrapperInner(System.TimeSpan? field = default(System.TimeSpan?))
         {
             Field = field;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "field")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/Error.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the Error class.
         /// </summary>
-        public Error() { }
+        public Error()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Error class.
@@ -26,8 +29,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             Status = status;
             Message = message;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "status")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/FishInner.cs

@@ -20,7 +20,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the FishInner class.
         /// </summary>
-        public FishInner() { }
+        public FishInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the FishInner class.
@@ -30,8 +33,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
             Species = species;
             Length = length;
             Siblings = siblings;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "species")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/FloatWrapperInner.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the FloatWrapperInner class.
         /// </summary>
-        public FloatWrapperInner() { }
+        public FloatWrapperInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the FloatWrapperInner class.
@@ -26,8 +29,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             Field1 = field1;
             Field2 = field2;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "field1")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/Goblinshark.cs

@@ -20,7 +20,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the Goblinshark class.
         /// </summary>
-        public Goblinshark() { }
+        public Goblinshark()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Goblinshark class.
@@ -29,8 +32,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
             : base(length, birthday, species, siblings, age)
         {
             Jawsize = jawsize;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "jawsize")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/IntWrapperInner.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the IntWrapperInner class.
         /// </summary>
-        public IntWrapperInner() { }
+        public IntWrapperInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the IntWrapperInner class.
@@ -26,8 +29,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             Field1 = field1;
             Field2 = field2;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "field1")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/LongWrapperInner.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the LongWrapperInner class.
         /// </summary>
-        public LongWrapperInner() { }
+        public LongWrapperInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the LongWrapperInner class.
@@ -26,8 +29,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             Field1 = field1;
             Field2 = field2;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "field1")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/Pet.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the Pet class.
         /// </summary>
-        public Pet() { }
+        public Pet()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Pet class.
@@ -26,8 +29,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             Id = id;
             Name = name;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "id")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/ProductInner.cs

@@ -20,7 +20,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the ProductInner class.
         /// </summary>
-        public ProductInner() { }
+        public ProductInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the ProductInner class.
@@ -41,8 +44,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
             DisplayName = displayName;
             Capacity = capacity;
             Image = image;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets unique identifier representing a specific product for
         /// a given latitude &amp;amp; longitude. For example, uberX in San

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/ReadonlyObjInner.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the ReadonlyObjInner class.
         /// </summary>
-        public ReadonlyObjInner() { }
+        public ReadonlyObjInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the ReadonlyObjInner class.
@@ -26,8 +29,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             Id = id;
             Size = size;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "id")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/Salmon.cs

@@ -20,7 +20,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the Salmon class.
         /// </summary>
-        public Salmon() { }
+        public Salmon()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Salmon class.
@@ -30,8 +33,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             Location = location;
             Iswild = iswild;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "location")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/Sawshark.cs

@@ -20,7 +20,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the Sawshark class.
         /// </summary>
-        public Sawshark() { }
+        public Sawshark()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Sawshark class.
@@ -29,8 +32,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
             : base(length, birthday, species, siblings, age)
         {
             Picture = picture;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "picture")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/Shark.cs

@@ -20,7 +20,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the Shark class.
         /// </summary>
-        public Shark() { }
+        public Shark()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Shark class.
@@ -30,8 +33,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         {
             Age = age;
             Birthday = birthday;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "age")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/SiameseInner.cs

@@ -19,7 +19,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the SiameseInner class.
         /// </summary>
-        public SiameseInner() { }
+        public SiameseInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the SiameseInner class.
@@ -28,8 +31,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
             : base(id, name, color, hates)
         {
             Breed = breed;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "breed")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureCompositeModelClient/Models/StringWrapperInner.cs

@@ -17,7 +17,10 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
         /// <summary>
         /// Initializes a new instance of the StringWrapperInner class.
         /// </summary>
-        public StringWrapperInner() { }
+        public StringWrapperInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the StringWrapperInner class.
@@ -27,8 +30,14 @@ namespace Fixtures.AcceptanceTestsAzureCompositeModelClient.Models
             Field = field;
             Empty = empty;
             NullProperty = nullProperty;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "field")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureParameterGrouping/Models/Error.cs

@@ -18,7 +18,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureParameterGrouping.Models
         /// <summary>
         /// Initializes a new instance of the Error class.
         /// </summary>
-        public Error() { }
+        public Error()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Error class.
@@ -27,8 +30,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureParameterGrouping.Models
         {
             Status = status;
             Message = message;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "status")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureParameterGrouping/Models/FirstParameterGroupInner.cs

@@ -23,7 +23,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureParameterGrouping.Models
         /// <summary>
         /// Initializes a new instance of the FirstParameterGroupInner class.
         /// </summary>
-        public FirstParameterGroupInner() { }
+        public FirstParameterGroupInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the FirstParameterGroupInner class.
@@ -33,8 +36,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureParameterGrouping.Models
         {
             HeaderOne = headerOne;
             QueryOne = queryOne;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureParameterGrouping/Models/ParameterGroupingPostMultiParamGroupsSecondParamGroupInner.cs

@@ -23,7 +23,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureParameterGrouping.Models
         /// Initializes a new instance of the
         /// ParameterGroupingPostMultiParamGroupsSecondParamGroupInner class.
         /// </summary>
-        public ParameterGroupingPostMultiParamGroupsSecondParamGroupInner() { }
+        public ParameterGroupingPostMultiParamGroupsSecondParamGroupInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -34,8 +37,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureParameterGrouping.Models
         {
             HeaderTwo = headerTwo;
             QueryTwo = queryTwo;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureParameterGrouping/Models/ParameterGroupingPostOptionalParametersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureParameterGrouping.Models
         /// Initializes a new instance of the
         /// ParameterGroupingPostOptionalParametersInner class.
         /// </summary>
-        public ParameterGroupingPostOptionalParametersInner() { }
+        public ParameterGroupingPostOptionalParametersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -33,8 +36,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureParameterGrouping.Models
         {
             CustomHeader = customHeader;
             Query = query;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureParameterGrouping/Models/ParameterGroupingPostRequiredParametersInner.cs

@@ -23,7 +23,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureParameterGrouping.Models
         /// Initializes a new instance of the
         /// ParameterGroupingPostRequiredParametersInner class.
         /// </summary>
-        public ParameterGroupingPostRequiredParametersInner() { }
+        public ParameterGroupingPostRequiredParametersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -37,8 +40,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureParameterGrouping.Models
             CustomHeader = customHeader;
             Query = query;
             Path = path;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureReport/Models/Error.cs

@@ -18,7 +18,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureReport.Models
         /// <summary>
         /// Initializes a new instance of the Error class.
         /// </summary>
-        public Error() { }
+        public Error()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Error class.
@@ -27,8 +30,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureReport.Models
         {
             Status = status;
             Message = message;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "status")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureResource/Models/Error.cs

@@ -18,7 +18,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureResource.Models
         /// <summary>
         /// Initializes a new instance of the Error class.
         /// </summary>
-        public Error() { }
+        public Error()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Error class.
@@ -27,8 +30,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureResource.Models
         {
             Status = status;
             Message = message;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "status")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureResource/Models/FlattenedProductInner.cs

@@ -24,7 +24,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureResource.Models
         /// <summary>
         /// Initializes a new instance of the FlattenedProductInner class.
         /// </summary>
-        public FlattenedProductInner() { }
+        public FlattenedProductInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the FlattenedProductInner class.
@@ -35,8 +38,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureResource.Models
             Pname = pname;
             Lsize = lsize;
             ProvisioningState = provisioningState;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "properties.pname")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureResource/Models/ResourceCollectionInner.cs

@@ -20,7 +20,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureResource.Models
         /// <summary>
         /// Initializes a new instance of the ResourceCollectionInner class.
         /// </summary>
-        public ResourceCollectionInner() { }
+        public ResourceCollectionInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the ResourceCollectionInner class.
@@ -30,8 +33,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureResource.Models
             Productresource = productresource;
             Arrayofresources = arrayofresources;
             Dictionaryofresources = dictionaryofresources;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "productresource")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureResource/Models/ResourceInner.cs

@@ -24,7 +24,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureResource.Models
         /// <summary>
         /// Initializes a new instance of the ResourceInner class.
         /// </summary>
-        public ResourceInner() { }
+        public ResourceInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the ResourceInner class.
@@ -40,8 +43,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureResource.Models
             Tags = tags;
             Location = location;
             Name = name;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets resource Id
         /// </summary>

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureSpecials/Models/Error.cs

@@ -18,7 +18,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureSpecials.Models
         /// <summary>
         /// Initializes a new instance of the Error class.
         /// </summary>
-        public Error() { }
+        public Error()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Error class.
@@ -28,8 +31,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureSpecials.Models
             Status = status;
             ConstantId = constantId;
             Message = message;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "status")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureSpecials/Models/HeaderCustomNamedRequestIdHeadHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureSpecials.Models
         /// Initializes a new instance of the
         /// HeaderCustomNamedRequestIdHeadHeadersInner class.
         /// </summary>
-        public HeaderCustomNamedRequestIdHeadHeadersInner() { }
+        public HeaderCustomNamedRequestIdHeadHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -32,8 +35,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureSpecials.Models
         public HeaderCustomNamedRequestIdHeadHeadersInner(string fooRequestId = default(string))
         {
             FooRequestId = fooRequestId;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets the foo-request-id.
         /// </summary>

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureSpecials/Models/HeaderCustomNamedRequestIdHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureSpecials.Models
         /// Initializes a new instance of the
         /// HeaderCustomNamedRequestIdHeadersInner class.
         /// </summary>
-        public HeaderCustomNamedRequestIdHeadersInner() { }
+        public HeaderCustomNamedRequestIdHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -32,8 +35,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureSpecials.Models
         public HeaderCustomNamedRequestIdHeadersInner(string fooRequestId = default(string))
         {
             FooRequestId = fooRequestId;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets the foo-request-id.
         /// </summary>

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureSpecials/Models/HeaderCustomNamedRequestIdParamGroupingHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureSpecials.Models
         /// Initializes a new instance of the
         /// HeaderCustomNamedRequestIdParamGroupingHeadersInner class.
         /// </summary>
-        public HeaderCustomNamedRequestIdParamGroupingHeadersInner() { }
+        public HeaderCustomNamedRequestIdParamGroupingHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -32,8 +35,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureSpecials.Models
         public HeaderCustomNamedRequestIdParamGroupingHeadersInner(string fooRequestId = default(string))
         {
             FooRequestId = fooRequestId;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets the foo-request-id.
         /// </summary>

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureSpecials/Models/HeaderCustomNamedRequestIdParamGroupingParametersInner.cs

@@ -24,7 +24,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureSpecials.Models
         /// Initializes a new instance of the
         /// HeaderCustomNamedRequestIdParamGroupingParametersInner class.
         /// </summary>
-        public HeaderCustomNamedRequestIdParamGroupingParametersInner() { }
+        public HeaderCustomNamedRequestIdParamGroupingParametersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -34,8 +37,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureSpecials.Models
         public HeaderCustomNamedRequestIdParamGroupingParametersInner(string fooClientRequestId)
         {
             FooClientRequestId = fooClientRequestId;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets the fooRequestId
         /// </summary>

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/AzureSpecials/Models/OdataFilterInner.cs

@@ -18,7 +18,10 @@ namespace Fixtures.Azure.AcceptanceTestsAzureSpecials.Models
         /// <summary>
         /// Initializes a new instance of the OdataFilterInner class.
         /// </summary>
-        public OdataFilterInner() { }
+        public OdataFilterInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the OdataFilterInner class.
@@ -27,8 +30,14 @@ namespace Fixtures.Azure.AcceptanceTestsAzureSpecials.Models
         {
             Id = id;
             Name = name;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "id")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/CustomBaseUri/Models/Error.cs

@@ -18,7 +18,10 @@ namespace Fixtures.Azure.AcceptanceTestsCustomBaseUri.Models
         /// <summary>
         /// Initializes a new instance of the Error class.
         /// </summary>
-        public Error() { }
+        public Error()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the Error class.
@@ -27,8 +30,14 @@ namespace Fixtures.Azure.AcceptanceTestsCustomBaseUri.Models
         {
             Status = status;
             Message = message;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// </summary>
         [JsonProperty(PropertyName = "status")]

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LRORetrysDelete202Retry200HeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LRORetrysDelete202Retry200HeadersInner class.
         /// </summary>
-        public LRORetrysDelete202Retry200HeadersInner() { }
+        public LRORetrysDelete202Retry200HeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -36,8 +39,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         {
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/retryerror/delete/202/retry/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LRORetrysDeleteAsyncRelativeRetrySucceededHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LRORetrysDeleteAsyncRelativeRetrySucceededHeadersInner class.
         /// </summary>
-        public LRORetrysDeleteAsyncRelativeRetrySucceededHeadersInner() { }
+        public LRORetrysDeleteAsyncRelativeRetrySucceededHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -41,8 +44,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/retryerror/deleteasync/retry/succeeded/operationResults/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LRORetrysDeleteProvisioning202Accepted200SucceededHeadersInner.cs

@@ -24,7 +24,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// LRORetrysDeleteProvisioning202Accepted200SucceededHeadersInner
         /// class.
         /// </summary>
-        public LRORetrysDeleteProvisioning202Accepted200SucceededHeadersInner() { }
+        public LRORetrysDeleteProvisioning202Accepted200SucceededHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -40,8 +43,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         {
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/retryerror/delete/provisioning/202/accepted/200/succeeded

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LRORetrysPost202Retry200HeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LRORetrysPost202Retry200HeadersInner class.
         /// </summary>
-        public LRORetrysPost202Retry200HeadersInner() { }
+        public LRORetrysPost202Retry200HeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -36,8 +39,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         {
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/retryerror/post/202/retry/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LRORetrysPostAsyncRelativeRetrySucceededHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LRORetrysPostAsyncRelativeRetrySucceededHeadersInner class.
         /// </summary>
-        public LRORetrysPostAsyncRelativeRetrySucceededHeadersInner() { }
+        public LRORetrysPostAsyncRelativeRetrySucceededHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -41,8 +44,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/retryerror/putasync/retry/succeeded/operationResults/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LRORetrysPutAsyncRelativeRetrySucceededHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LRORetrysPutAsyncRelativeRetrySucceededHeadersInner class.
         /// </summary>
-        public LRORetrysPutAsyncRelativeRetrySucceededHeadersInner() { }
+        public LRORetrysPutAsyncRelativeRetrySucceededHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -41,8 +44,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/retryerror/putasync/retry/succeeded/operationResults/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsDelete202NonRetry400HeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsDelete202NonRetry400HeadersInner class.
         /// </summary>
-        public LROSADsDelete202NonRetry400HeadersInner() { }
+        public LROSADsDelete202NonRetry400HeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -36,8 +39,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         {
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/retryerror/delete/202/retry/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsDelete202RetryInvalidHeaderHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsDelete202RetryInvalidHeaderHeadersInner class.
         /// </summary>
-        public LROSADsDelete202RetryInvalidHeaderHeadersInner() { }
+        public LROSADsDelete202RetryInvalidHeaderHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -36,8 +39,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         {
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /foo

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsDeleteAsyncRelativeRetry400HeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsDeleteAsyncRelativeRetry400HeadersInner class.
         /// </summary>
-        public LROSADsDeleteAsyncRelativeRetry400HeadersInner() { }
+        public LROSADsDeleteAsyncRelativeRetry400HeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -41,8 +44,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/nonretryerror/deleteasync/retry/operationResults/400

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsDeleteAsyncRelativeRetryInvalidHeaderHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsDeleteAsyncRelativeRetryInvalidHeaderHeadersInner class.
         /// </summary>
-        public LROSADsDeleteAsyncRelativeRetryInvalidHeaderHeadersInner() { }
+        public LROSADsDeleteAsyncRelativeRetryInvalidHeaderHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -39,8 +42,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /foo

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsDeleteAsyncRelativeRetryInvalidJsonPollingHeadersInner.cs

@@ -24,7 +24,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// LROSADsDeleteAsyncRelativeRetryInvalidJsonPollingHeadersInner
         /// class.
         /// </summary>
-        public LROSADsDeleteAsyncRelativeRetryInvalidJsonPollingHeadersInner() { }
+        public LROSADsDeleteAsyncRelativeRetryInvalidJsonPollingHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -44,8 +47,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/error/deleteasync/retry/failed/operationResults/invalidjsonpolling

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsDeleteAsyncRelativeRetryNoStatusHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsDeleteAsyncRelativeRetryNoStatusHeadersInner class.
         /// </summary>
-        public LROSADsDeleteAsyncRelativeRetryNoStatusHeadersInner() { }
+        public LROSADsDeleteAsyncRelativeRetryNoStatusHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -41,8 +44,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/deleteasync/retry/succeeded/operationResults/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsDeleteNonRetry400HeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsDeleteNonRetry400HeadersInner class.
         /// </summary>
-        public LROSADsDeleteNonRetry400HeadersInner() { }
+        public LROSADsDeleteNonRetry400HeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -36,8 +39,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         {
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/retryerror/delete/202/retry/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsPost202NoLocationHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsPost202NoLocationHeadersInner class.
         /// </summary>
-        public LROSADsPost202NoLocationHeadersInner() { }
+        public LROSADsPost202NoLocationHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -36,8 +39,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         {
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will not be set
         /// </summary>

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsPost202NonRetry400HeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsPost202NonRetry400HeadersInner class.
         /// </summary>
-        public LROSADsPost202NonRetry400HeadersInner() { }
+        public LROSADsPost202NonRetry400HeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -36,8 +39,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         {
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/retryerror/post/202/retry/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsPost202RetryInvalidHeaderHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsPost202RetryInvalidHeaderHeadersInner class.
         /// </summary>
-        public LROSADsPost202RetryInvalidHeaderHeadersInner() { }
+        public LROSADsPost202RetryInvalidHeaderHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -36,8 +39,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         {
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /foo

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsPostAsyncRelativeRetry400HeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsPostAsyncRelativeRetry400HeadersInner class.
         /// </summary>
-        public LROSADsPostAsyncRelativeRetry400HeadersInner() { }
+        public LROSADsPostAsyncRelativeRetry400HeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -41,8 +44,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/nonretryerror/putasync/retry/operationResults/400

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsPostAsyncRelativeRetryInvalidHeaderHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsPostAsyncRelativeRetryInvalidHeaderHeadersInner class.
         /// </summary>
-        public LROSADsPostAsyncRelativeRetryInvalidHeaderHeadersInner() { }
+        public LROSADsPostAsyncRelativeRetryInvalidHeaderHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -39,8 +42,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to foo
         /// </summary>

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsPostAsyncRelativeRetryInvalidJsonPollingHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsPostAsyncRelativeRetryInvalidJsonPollingHeadersInner class.
         /// </summary>
-        public LROSADsPostAsyncRelativeRetryInvalidJsonPollingHeadersInner() { }
+        public LROSADsPostAsyncRelativeRetryInvalidJsonPollingHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -41,8 +44,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/error/postasync/retry/failed/operationResults/invalidjsonpolling

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsPostAsyncRelativeRetryNoPayloadHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsPostAsyncRelativeRetryNoPayloadHeadersInner class.
         /// </summary>
-        public LROSADsPostAsyncRelativeRetryNoPayloadHeadersInner() { }
+        public LROSADsPostAsyncRelativeRetryNoPayloadHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -41,8 +44,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/error/putasync/retry/failed/operationResults/nopayload

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsPostNonRetry400HeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsPostNonRetry400HeadersInner class.
         /// </summary>
-        public LROSADsPostNonRetry400HeadersInner() { }
+        public LROSADsPostNonRetry400HeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -36,8 +39,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         {
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/retryerror/post/202/retry/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsPutAsyncRelativeRetry400HeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsPutAsyncRelativeRetry400HeadersInner class.
         /// </summary>
-        public LROSADsPutAsyncRelativeRetry400HeadersInner() { }
+        public LROSADsPutAsyncRelativeRetry400HeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -41,8 +44,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/nonretryerror/putasync/retry/operationResults/400

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsPutAsyncRelativeRetryInvalidHeaderHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsPutAsyncRelativeRetryInvalidHeaderHeadersInner class.
         /// </summary>
-        public LROSADsPutAsyncRelativeRetryInvalidHeaderHeadersInner() { }
+        public LROSADsPutAsyncRelativeRetryInvalidHeaderHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -40,8 +43,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/putasync/retry/succeeded/operationResults/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsPutAsyncRelativeRetryInvalidJsonPollingHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsPutAsyncRelativeRetryInvalidJsonPollingHeadersInner class.
         /// </summary>
-        public LROSADsPutAsyncRelativeRetryInvalidJsonPollingHeadersInner() { }
+        public LROSADsPutAsyncRelativeRetryInvalidJsonPollingHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -40,8 +43,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/putasync/retry/failed/operationResults/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsPutAsyncRelativeRetryNoStatusHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsPutAsyncRelativeRetryNoStatusHeadersInner class.
         /// </summary>
-        public LROSADsPutAsyncRelativeRetryNoStatusHeadersInner() { }
+        public LROSADsPutAsyncRelativeRetryNoStatusHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -40,8 +43,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/putasync/retry/succeeded/operationResults/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROSADsPutAsyncRelativeRetryNoStatusPayloadHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROSADsPutAsyncRelativeRetryNoStatusPayloadHeadersInner class.
         /// </summary>
-        public LROSADsPutAsyncRelativeRetryNoStatusPayloadHeadersInner() { }
+        public LROSADsPutAsyncRelativeRetryNoStatusPayloadHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -40,8 +43,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/putasync/retry/succeeded/operationResults/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROsCustomHeaderPost202Retry200HeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROsCustomHeaderPost202Retry200HeadersInner class.
         /// </summary>
-        public LROsCustomHeaderPost202Retry200HeadersInner() { }
+        public LROsCustomHeaderPost202Retry200HeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -36,8 +39,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         {
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/customheader/post/202/retry/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROsCustomHeaderPostAsyncRetrySucceededHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROsCustomHeaderPostAsyncRetrySucceededHeadersInner class.
         /// </summary>
-        public LROsCustomHeaderPostAsyncRetrySucceededHeadersInner() { }
+        public LROsCustomHeaderPostAsyncRetrySucceededHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -41,8 +44,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/customheader/putasync/retry/succeeded/operationResults/200

src/generator/AutoRest.CSharp.Azure.Fluent.Tests/Expected/AcceptanceTests/Lro/Models/LROsCustomHeaderPutAsyncRetrySucceededHeadersInner.cs

@@ -22,7 +22,10 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
         /// Initializes a new instance of the
         /// LROsCustomHeaderPutAsyncRetrySucceededHeadersInner class.
         /// </summary>
-        public LROsCustomHeaderPutAsyncRetrySucceededHeadersInner() { }
+        public LROsCustomHeaderPutAsyncRetrySucceededHeadersInner()
+        {
+          CustomInit();
+        }
 
         /// <summary>
         /// Initializes a new instance of the
@@ -41,8 +44,14 @@ namespace Fixtures.Azure.AcceptanceTestsLro.Models
             AzureAsyncOperation = azureAsyncOperation;
             Location = location;
             RetryAfter = retryAfter;
+            CustomInit();
         }
 
+        /// <summary>
+        /// An initialization method that performs custom operations like setting defaults
+        /// </summary>
+        partial void CustomInit();
+
         /// <summary>
         /// Gets or sets location to poll for result status: will be set to
         /// /lro/customheader/putasync/retry/succeeded/operationResults/200