def METHOD_NAME(self):
    """
    :return:
    """
    manifest = '{"PostgreSQL-Backup-Manifest-Version": 1,\n"Files": [\n'
    for i in self.files:
        # sort_keys needed for python 2/3 compatibility
        manifest += json.dumps(i, sort_keys=True) + ",\n"
    manifest = manifest[:-2] + "],\n"
    return manifest