code: def set_offchain_reveal_state(
          transfers_pair: List[MediationPairState],
          payee_address: Address,
  ) -> None:
      
      for pair in transfers_pair:
          if pair.payee_address == payee_address:
              pair.payee_state = 'payee_secret_revealed'
docs: Set the state of a transfer *sent* to a payee.