Method ok_or_else

crates/stdlib/src/zlib.rs:487–492

(
            self,
            f: impl FnOnce() -> PyBaseExceptionRef,
        )

        }

        fn ok_or_else(
            self,
            f: impl FnOnce() -> PyBaseExceptionRef,
        ) -> PyResult<flate2::Compression> {
            self.0.ok_or_else(f)
        }
    }

    impl<'a> TryFromBorrowedObject<'a> for Level {