Method _set_parent

lib/sqlalchemy/sql/schema.py:4723–4728

(self, parent: SchemaEventTarget, **kw: Any)

                ) from ke

    def _set_parent(self, parent: SchemaEventTarget, **kw: Any) -> None:
        assert isinstance(parent, (Table, Column))

        for col in self._col_expressions(parent):
            if col is not None:
                self._columns.add(col)


class ColumnCollectionConstraint(ColumnCollectionMixin, Constraint):