code: def callproc(self, procname, parameters=()):
          
          conn = self._assert_open()
          conn._try_activate_cursor(self)
          return self._callproc(procname, parameters)
docs: Call a stored procedure with the given name.
  
          :param procname: The name of the procedure to call
          :type procname: str
          :keyword parameters: The optional parameters for the procedure
          :type parameters: sequence
  
          Note: If stored procedure has OUTPUT parameters and result sets this
          method will not return values for OUTPUT parameters, you should
          call get_proc_outputs to get values for OUTPUT parameters.