referenceAssemblies.props

<Project>

  <PropertyGroup>
    <!-- Reference assemblies are special and don't initialize fields or have empty finalizers, etc. -->
    <RunAnalyzers>false</RunAnalyzers>

    <!-- disable warnings about unused fields -->
    <NoWarn>$(NoWarn);CS0169;CS0649;CS8618</NoWarn>

    <!-- disable CS8597 because we throw null on reference assemblies. -->
    <NoWarn>$(NoWarn);CS8597</NoWarn>

    <!-- We base calls from constructors with null literals. -->
    <NoWarn>$(NoWarn);CS8625</NoWarn>

    <!-- We dont need to add null annotation within the ref for explicit interface methods. -->
    <NoWarn>$(NoWarn);CS8617</NoWarn>
  </PropertyGroup>

  <!-- All reference assemblies should have a ReferenceAssemblyAttribute and the 0x70 flag which prevents them from loading. -->
  <ItemGroup>
    <AssemblyAttribute Include="System.Runtime.CompilerServices.ReferenceAssemblyAttribute" />
    <AssemblyAttribute Include="System.Reflection.AssemblyFlags">
      <_Parameter1>(System.Reflection.AssemblyNameFlags)0x70</_Parameter1>
      <_Parameter1_IsLiteral>true</_Parameter1_IsLiteral>
    </AssemblyAttribute>
  </ItemGroup>

</Project>