/// <summary>
 /// Returns a hash code for this instance.
 /// </summary>
 /// <returns>
 /// A hash code for this instance, suitable for use in hashing algorithms and data structures like a hash table.
 /// </returns>
 public override int GetHashCode() => _state.GetHashCode() ^ Message.GetHashCode();
 /// <summary>
 /// Returns a hash code for this instance.
 /// </summary>
 /// <returns>
 /// A hash code for this instance, suitable for use in hashing algorithms and data structures like a hash table.
 /// </returns>
 public override int GetHashCode()
 {
     return(_state.GetHashCode() ^ _message.GetHashCode());
 }