<PackageReference Include="System.ServiceModel.Primitives" Version="6.0.0-preview1.23060.3" />

System.Xml.XmlMtomWriter

class XmlMtomWriter : XmlDictionaryWriter, IXmlMtomWriterInitializer
public XmlMtomWriter()

public static XmlDictionaryWriter Create(Stream stream, Encoding encoding, int maxSizeInBytes, string startInfo)

public static XmlDictionaryWriter Create(Stream stream, Encoding encoding, int maxSizeInBytes, string startInfo, string boundary, string startUri, bool writeMessageHeaders, bool ownsStream)

public static string GenerateUriForMimePart(int index)

public void SetOutput(Stream stream, Encoding encoding, int maxSizeInBytes, string startInfo, string boundary, string startUri, bool writeMessageHeaders, bool ownsStream)