code: def get_token(self, hash):
          
          tokens_snapshot = self.db.prefixed_db(NotificationPrefix.PREFIX_TOKEN).snapshot()
  
          try:
              val = tokens_snapshot.get(hash.ToBytes())
              if val:
                  event = SmartContractEvent.FromByteArray(val)
                  return event
          except Exception as e:
              logger.error("Smart contract event with contract hash %s not found: %s " % (hash.ToString(), e))
          return None
docs: Looks up a token by hash
          Args:
              hash (UInt160): The token to look up
  
          Returns:
              SmartContractEvent: A smart contract event with a contract that is an NEP5 Token