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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def config(maybe_cls=None, these=None, title=None, description=None):
 """ File config class decorator. Usage is to simply decorate a **class** to make it a :func:`config <file_config._file_config.config>` class. title="My Config Title", description="A description about my config" ) class MyConfig(object):
 pass :param class maybe_cls: The class to inherit from, defaults to None, optional :param dict these: A dictionary of str to ``file_config.var`` to use as attribs :param str title: The title of the config, defaults to None, optional :param str description: A description of the config, defaults to None, optional :return: Config wrapped class :rtype: class """


    def wrap(config_cls):
        """ The wrapper function.

        :param class config_cls: The class to wrap
        :return: The config_cls wrapper
        :rtype: class
        """

        setattr(config_cls, CONFIG_KEY, dict(title=title, description=description))
        # dynamically assign available handlers to the wrapped class
        for handler_name in handlers.__all__:
            handler = getattr(handlers, handler_name)
            if handler.available:
                handler = handler()
                setattr(
                    config_cls,
                    f"dumps_{handler.name}",
                    partialmethod(_handle_dumps, handler),
                )
                setattr(
                    config_cls,
                    f"dump_{handler.name}",
                    partialmethod(_handle_dump, handler),
                )
                setattr(
                    config_cls,
                    f"loads_{handler.name}",
                    partialmethod(_handle_loads, handler),
                )
                setattr(
                    config_cls,
                    f"load_{handler.name}",
                    partialmethod(_handle_load, handler),
                )
        config_vars = these if isinstance(these, dict) else None
        return attr.s(config_cls, these=config_vars, slots=True)

    if maybe_cls is None:
        return wrap
    else:
        return wrap(maybe_cls)