Function function_compose::lift_sync_fn6

pub fn lift_sync_fn6<'a, T1, T2, T3, T4, T5, T6, T7, F: FnOnce(T1, T2, T3, T4, T5, T6) -> Result<T7, FnError> + Send + Sync + 'a>(
    f: F,
) -> BoxedFn6<'a, T1, T2, T3, T4, T5, T6, T7>

Function to box FnOnce sync function with 6 aguments and coerce it to BoxedFn6