<PackageReference Include="System.ServiceModel.Primitives" Version="6.2.0" />

System.ServiceModel.Channels.BufferedHeader

namespace System.ServiceModel.Channels { internal class BufferedHeader : ReadableMessageHeader { public BufferedHeader(MessageVersion version, XmlBuffer buffer, int bufferIndex, string name, string ns, bool mustUnderstand, string actor, bool relay, bool isRefParam); public BufferedHeader(MessageVersion version, XmlBuffer buffer, int bufferIndex, MessageHeaderInfo headerInfo); public BufferedHeader(MessageVersion version, XmlBuffer buffer, XmlDictionaryReader reader, XmlAttributeHolder[] envelopeAttributes, XmlAttributeHolder[] headerAttributes); } }