Update only the given settings for the given subreddit.

        The settings to update must be given by keyword and match one of the
        parameter names in `set_settings`.

        :returns: The json response from the server.

def update_settings(self, subreddit, **kwargs):
        """Update only the given settings for the given subreddit.

        The settings to update must be given by keyword and match one of the
        parameter names in `set_settings`.

        :returns: The json response from the server.

        """
        settings = self.get_settings(subreddit)
        settings.update(kwargs)
        del settings['subreddit_id']
        return self.set_settings(subreddit, **settings)