pub fn capt_6<C, T0, T1, T2, T3, T4, T5, R, F: Fn(&C, T0, T1, T2, T3, T4, T5) -> R>( c: C, f: F ) -> impl Fn(T0, T1, T2, T3, T4, T5) -> R
Manually capture the variables required by the closure