& (<T1, T2, T3, T4, T5, T6, Y, R, N, Fn: Saga6<Y, R, N, T1, T2, T3, T4, T5, T6>>(pattern: Pattern, saga: Fn, t1: T1, t2: T2, t3: T3, t4: T4, t5: T5, t6: T6, ...rest: Array<void>) => TakeXRet)