def format_help(self, ctx, formatter):
        """Writes the help into the formatter if it exists.

        This is a low-level method called by :meth:`get_help`.

        This calls the following methods:

        -   :meth:`format_usage`
        -   :meth:`format_help_text`
        -   :meth:`format_options`
        -   :meth:`format_epilog`
        """
        self.format_usage(ctx, formatter)
        self.format_help_text(ctx, formatter)
        self.format_options(ctx, formatter)
        self.format_epilog(ctx, formatter)
Writes the help into the formatter if it exists.

        This is a low-level method called by :meth:`get_help`.

        This calls the following methods:

        -   :meth:`format_usage`
        -   :meth:`format_help_text`
        -   :meth:`format_options`
        -   :meth:`format_epilog`
        
dynaconf/vendor/click/core.py