def __validate_date_arg(self, cmd_arg):
        try:
            date = dateutil.parser.parse(self.command_args[cmd_arg])
            return date
        except __HOLE__:
            raise AzureInvalidCommand(
                cmd_arg + '=' + self.command_args[cmd_arg]
            )
dataset/ETHPy150Open SUSE/azurectl/azurectl/commands/storage_container.py/StorageContainerTask.__validate_date_arg