def error(self, message):
        """Prints a usage message incorporating the message to stderr and
        exits."""
        self.print_usage(sys.stderr)
        self.env.rich_error_console.print(
            dedent(
                f'''
                [bold]error[/bold]:
                    {message}

                [bold]for more information[/bold]:
                    run '{self.prog} --help' or visit https://httpie.io/docs/cli
                '''.rstrip()
            )
        )
        self.exit(2)
Prints a usage message incorporating the message to stderr and
        exits.
httpie/cli/argparser.py