pub type bqn_boundFn2 = Option<unsafe extern "C" fn(obj: BQNV, w: BQNV, x: BQNV) -> BQNV>;
pub enum bqn_boundFn2 { None, Some(unsafe extern "C" fn(u64, u64, u64) -> u64), }
No value.
Some value of type T.
T