{exclusive_decode, {'TCAPPackage',
      [{decode_PackageType, ['PackageType', 
            [{unidirectional, undecoded},
            {queryWithPerm, [{componentPortion, parts}]},
            {queryWithoutPerm, undecoded},
            {response, [{componentPortion, parts}]},
            {conversationWithPerm, undecoded},
            {conversationWithoutPerm, undecoded},
            {abort, undecoded}]]},
      {decode_TransactionPDU, ['TransactionPDU',
            [{componentPortion, parts}]]}]}}.