aint: contains_aggregate: bool = ... alias: str = ... columns: List[str] = ... targets: List[str] = ... query_object: Query = ... def __init__(self, alias: str, columns: List[str], targets: List[str], query_object: Query) -> None: ... def as_sql(self, compiler: SQLCompiler, connection: Any) -> Tuple[str, Tuple]: ... PK