Function function_compose::lift_sync_fn8

pub fn lift_sync_fn8<'a, T1, T2, T3, T4, T5, T6, T7, T8, T9, F: FnOnce(T1, T2, T3, T4, T5, T6, T7, T8) -> Result<T9, FnError> + Send + Sync + 'a>(
    f: F,
) -> BoxedFn8<'a, T1, T2, T3, T4, T5, T6, T7, T8, T9>

Function to box FnOnce sync function with 8 aguments and coerce it to BoxedFn8