<PackageReference Include="System.ServiceModel.Primitives" Version="6.0.0-rc.23205.4" />

System.ServiceModel.Channels.BinaryEncodingString

static class BinaryEncodingString
public const string Binary = "application/soap+msbin1"

public const string BinarySession = "application/soap+msbinsession1"

public const string ExtendedBinaryDeflate = "application/soap+msbin1+deflate"

public const string ExtendedBinaryGZip = "application/soap+msbin1+gzip"

public const string ExtendedBinarySessionDeflate = "application/soap+msbinsession1+deflate"

public const string ExtendedBinarySessionGZip = "application/soap+msbinsession1+gzip"

public const string NamespaceUri = "http://schemas.microsoft.com/ws/2006/05/framing"