def execution_time(self, value):
        """
        Force the execution_time to always be a datetime
        :param value:
        :return:
        """
        if value:
            self._execution_time = parse(value) if isinstance(value, type_check) else value
def execution_time ( self , value ) : if value : self . _execution_time = parse ( value ) if isinstance ( value , type_check ) else value
Force the execution_time to always be a datetime
        :param value:
        :return: