Method as_readonly

lib/sqlalchemy/util/_collections.py:204–207

Return an immutable proxy for this :class:`.Properties`.

(self)

        return key in self._data

    def as_readonly(self) -> ReadOnlyProperties[_T]:
        """Return an immutable proxy for this :class:`.Properties`."""

        return ReadOnlyProperties(self._data)

    def update(self, value: Dict[str, _T]) -> None:
        self._data.update(value)