code: def reset(self):
          
          try:
              self._con.reset()
              self._transaction = False
              self._setsession()
              self._usage = 0
          except Exception:
              try:
                  self.reopen()
              except Exception:
                  try:
                      self.rollback()
                  except Exception:
                      pass
docs: Reset the tough connection.
  
          If a reset is not possible, tries to reopen the connection.
          It will not complain if the connection is already closed.