/// <inheritdoc/> public override int GetHashCode() { unchecked { var hashCode = Implementation.GetHashCode(); hashCode = (hashCode * 397) ^ FeedUri.GetHashCode(); hashCode = (hashCode * 397) ^ IsSuitable.GetHashCode(); if (Notes != null) { hashCode = (hashCode * 397) ^ Notes.GetHashCode(); } return(hashCode); } }