xamarin-macios/tests/test-libraries/custom-type-assembly/custom-type-assembly.csproj

<?xml version="1.0" encoding="utf-8"?>
<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFramework>net$(BundledNETCoreAppTargetFrameworkVersion)-macos</TargetFramework>
    <LangVersion>latest</LangVersion>
  </PropertyGroup>
</Project>