<PackageReference Include="NETStandard.Library" Version="2.0.0" />
System.NotImplementedException
namespace System
{
public class NotImplementedException :
SystemException
{
public NotImplementedException();
protected NotImplementedException(
SerializationInfo info,
StreamingContext context);
public NotImplementedException(
string message);
public NotImplementedException(
string message,
Exception inner);
}
}