<PackageReference Include="Microsoft.CSharp" Version="4.6.0" />

OpSigFlags

enum OpSigFlags
namespace Microsoft.CSharp.RuntimeBinder.Semantics { internal enum OpSigFlags { None = 0, Convert = 1, CanLift = 2, AutoLift = 4, Value = 7, Reference = 1, BoolBit = 3 } }