def _l_to_r_op(op: F) -> F:
    """Swap the argument order to turn an l-op into an r-op."""

    def r_op(obj: t.Any, other: t.Any) -> t.Any:
        return op(other, obj)

    return t.cast(F, r_op)
Swap the argument order to turn an l-op into an r-op.
src/werkzeug/local.py