Get a file in the Mxit user's gallery
        User authentication required with the following scope: 'content/read'

def get_gallery_file(self, file_id, output_file_path=None, scope='content/read'):
        """
        Get a file in the Mxit user's gallery
        User authentication required with the following scope: 'content/read'
        """
        data = _get(
            token=self.oauth.get_user_token(scope),
            uri='/user/media/content/' + urllib.quote(file_id)
        )

        if output_file_path:
            with open(output_file_path, 'w') as f:
                f.write(data)
        else:
            return data