<PackageReference Include="System.ServiceModel.Http" Version="8.0.0" />

System.ServiceModel.Channels.HttpRequestMessageProperty

namespace System.ServiceModel.Channels { public sealed class HttpRequestMessageProperty { public static string Name { get; } public WebHeaderCollection Headers { get; } public string Method { get; set; } public string QueryString { get; set; } public bool SuppressEntityBody { get; set; } public HttpRequestMessage HttpRequestMessage { get; } public HttpRequestMessageProperty(); IMessageProperty CreateCopy(); bool TryMergeWithProperty(object propertyToMerge); } }