xamarinmac 
namespace System.ServiceModel.Channels
{
    public abstract class MessageHeader : MessageHeaderInfo
    {
        public override string Actor { get; }
    }
}
.NET 5.06.07.08.09.010.0
.NET Core 2.02.12.23.03.1
.NET Framework 3.03.54.04.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
.NET Standard 2.02.1
Information specific to xamarinmac
Assembly

System.ServiceModel , Version=2.0.5.0, PublicKeyToken=31bf3856ad364e35

Referencing

The API is automatically referenced.

Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API