public override string ToString()
{
var sb = new StringBuilder();
sb.AppendLine("PublicKey: " + PublicKey.EmptyNull());
sb.AppendLine("Url: " + Url.EmptyNull());
sb.AppendLine("HttpMethod: " + HttpMethod.EmptyNull());
sb.AppendLine("HttpAcceptType: " + HttpAcceptType.EmptyNull());
return(sb.ToString());
}