def get_help_option_names(self, ctx):
        """Returns the names for the help option."""
        all_names = set(ctx.help_option_names)
        for param in self.params:
            all_names.difference_update(param.opts)
            all_names.difference_update(param.secondary_opts)
        return all_names
Returns the names for the help option.
dynaconf/vendor/click/core.py