Method extend

lib/sqlalchemy/sql/base.py:2408–2409

(self, iter_: Iterable[_NAMEDCOL])

            self.replace(col)

    def extend(self, iter_: Iterable[_NAMEDCOL]) -> None:
        self._populate_separate_keys((col.key, col) for col in iter_)

    def remove(self, column: _NAMEDCOL) -> None:
        if column not in self._colset: