Method __init__

lib/sqlalchemy/sql/base.py:1626–1636

(
        self, columns: Optional[Iterable[Tuple[_COLKEY, _COL_co]]] = None
    )

    _colset: Set[_COL_co]

    def __init__(
        self, columns: Optional[Iterable[Tuple[_COLKEY, _COL_co]]] = None
    ):
        object.__setattr__(self, "_colset", set())
        object.__setattr__(self, "_index", {})
        object.__setattr__(
            self, "_proxy_index", collections.defaultdict(util.OrderedSet)
        )
        object.__setattr__(self, "_collection", [])
        if columns:
            self._initial_populate(columns)

    @util.preload_module("sqlalchemy.sql.elements")
    def __clause_element__(self) -> ClauseList: