public override int GetHashCode()
 {
     unchecked
     {
         var hashCode = Id;
         hashCode = (hashCode * 397) ^ (AdresAdresata != null ? AdresAdresata.GetHashCode() : 0);
         hashCode = (hashCode * 397) ^ PoczatekObslugi.GetHashCode();
         hashCode = (hashCode * 397) ^ KoniecObslugi.GetHashCode();
         hashCode = (hashCode * 397) ^ (Historia != null ? Historia.GetHashCode() : 0);
         hashCode = (hashCode * 397) ^ (Status != null ? Status.GetHashCode() : 0);
         return(hashCode);
     }
 }