import { Type, TypeOf, OutputOf, Mixed } from 'io-ts';
export declare type Septuple<T> = [T, T, T, T, T, T, T];
export declare type ReadonlySeptuple<T> = readonly [T, T, T, T, T, T, T];
export declare function septuple<CS extends Mixed>(codec: CS): Type<Septuple<TypeOf<CS>>, Septuple<OutputOf<CS>>>;
export declare function readonlySeptuple<CS extends Mixed>(codec: CS): Type<ReadonlySeptuple<TypeOf<CS>>, ReadonlySeptuple<OutputOf<CS>>>;