<PackageReference Include="System.ServiceModel.Primitives" Version="8.1.0" />

System.ServiceModel.Security.MessagePartSpecification

namespace System.ServiceModel.Security { public class MessagePartSpecification { public ICollection<XmlQualifiedName> HeaderTypes { get; } public bool IsBodyIncluded { get; set; } public bool IsReadOnly { get; } public static MessagePartSpecification NoParts { get; } public void Clear(); public void Union(MessagePartSpecification specification); public void MakeReadOnly(); public MessagePartSpecification(); public MessagePartSpecification(bool isBodyIncluded); public MessagePartSpecification(params XmlQualifiedName[] headerTypes); public MessagePartSpecification(bool isBodyIncluded, params XmlQualifiedName[] headerTypes); } }