export declare const pair: <A, B>(a: A, b: B) => [A, B];
export declare const t0: <T extends unknown[], R = T[0]>(fn?: (_: T[0]) => R) => ([_]: T) => R;
export declare const t1: <T extends unknown[], R = T[1]>(fn?: (_: T[1]) => R) => ([, _]: T) => R;