code: def format_usage(program_name, description, commands=None, options=()):
      
      usage = USAGE_TEMPLATE.format(
          program_name=cmd_quote(program_name),
          description=description.strip() if description else '',
          options=_format_options_usage(options),
          arguments=_format_arguments_usage(options),
          commands=_format_command_usage(commands)
      )
      return usage
docs: Construct the usage text.
  
      Parameters
      ----------
          program_name : str
              Usually the name of the python file that contains the experiment.
          description : str
              description of this experiment (usually the docstring).
          commands : dict[str, func]
              Dictionary of supported commands.
              Each entry should be a tuple of (name, function).
          options : list[sacred.commandline_options.CommandLineOption]
              A list of all supported commandline options.
  
      Returns
      -------
          str
              The complete formatted usage text for this experiment.
              It adheres to the structure required by ``docopt``.