code: def remove(self, address):
          
          recipients = []
          if isinstance(address, str):
              address = {address}  # set
          elif isinstance(address, (list, tuple)):
              address = set(address)
  
          for recipient in self._recipients:
              if recipient.address not in address:
                  recipients.append(recipient)
          if len(recipients) != len(self._recipients):
              self._track_changes()
          self._recipients = recipients
docs: Remove an address or multiple addresses
  
          :param address: list of addresses to remove
          :type address: str or list[str]