Method _add_missing

lib/sqlalchemy/sql/_util_cy.py:100–105

(self: anon_map, key: _AM_KEY, /)

    @cython.cfunc
    @cython.inline
    def _add_missing(self: anon_map, key: _AM_KEY, /) -> int:
        val: int = self._index
        self._index += 1
        self_dict: dict = self  # type: ignore[type-arg]
        self_dict[key] = val
        return val

    def get_anon(self: anon_map, obj: object, /) -> Tuple[int, bool]:
        self_dict: dict = self  # type: ignore[type-arg]