Update example

example/Gemfile.lock

@@ -3,7 +3,7 @@ PATH
   specs:
     twirp (1.10.0)
       faraday (< 3)
-      google-protobuf (~> 3.0, >= 3.7.0)
+      google-protobuf (>= 3.25, < 5.a)
       rack (>= 2.2.3)
 
 GEM
@@ -13,7 +13,7 @@ GEM
       faraday-net_http (>= 2.0, < 3.1)
       ruby2_keywords (>= 0.0.4)
     faraday-net_http (3.0.2)
-    google-protobuf (3.21.12)
+    google-protobuf (3.25.4)
     rack (2.2.8.1)
     ruby2_keywords (0.0.5)
     webrick (1.7.0)
@@ -22,6 +22,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  google-protobuf (~> 3.x)
   rack
   twirp!
   webrick

example/hello_world/service_pb.rb

@@ -1,17 +1,34 @@
+# frozen_string_literal: true
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: hello_world/service.proto
 
 require 'google/protobuf'
 
-Google::Protobuf::DescriptorPool.generated_pool.build do
-  add_file("hello_world/service.proto", :syntax => :proto3) do
-    add_message "example.hello_world.HelloRequest" do
-      optional :name, :string, 1
-    end
-    add_message "example.hello_world.HelloResponse" do
-      optional :message, :string, 1
+
+descriptor_data = "\n\x19hello_world/service.proto\x12\x13\x65xample.hello_world\"\x1c\n\x0cHelloRequest\x12\x0c\n\x04name\x18\x01 \x01(\t\" \n\rHelloResponse\x12\x0f\n\x07message\x18\x01 \x01(\t2\\\n\nHelloWorld\x12N\n\x05Hello\x12!.example.hello_world.HelloRequest\x1a\".example.hello_world.HelloResponseb\x06proto3"
+
+pool = Google::Protobuf::DescriptorPool.generated_pool
+
+begin
+  pool.add_serialized_file(descriptor_data)
+rescue TypeError
+  # Compatibility code: will be removed in the next major version.
+  require 'google/protobuf/descriptor_pb'
+  parsed = Google::Protobuf::FileDescriptorProto.decode(descriptor_data)
+  parsed.clear_dependency
+  serialized = parsed.class.encode(parsed)
+  file = pool.add_serialized_file(serialized)
+  warn "Warning: Protobuf detected an import path issue while loading generated file #{__FILE__}"
+  imports = [
+  ]
+  imports.each do |type_name, expected_filename|
+    import_file = pool.lookup(type_name).file_descriptor
+    if import_file.name != expected_filename
+      warn "- #{file.name} imports #{expected_filename}, but that import was loaded as #{import_file.name}"
     end
   end
+  warn "Each proto file must use a consistent fully-qualified name."
+  warn "This will become an error in the next major version."
 end
 
 module Example

example/hello_world/service_twirp.rb

@@ -1,4 +1,4 @@
-# Code generated by protoc-gen-twirp_ruby 1.10.0, DO NOT EDIT.
+# Code generated by protoc-gen-twirp_ruby 1.10.1, DO NOT EDIT.
 require 'twirp'
 require_relative 'service_pb.rb'