import { Functional } from '../../../../Class/Functional';
import { Done } from '../../../../Class/Functional/Done';
import { System } from '../../../../system';
export interface I<A, B> {
    a: A[];
    b: B[];
}
export interface O<A, B> {
    ab: (A | B)[];
}
export default class Concat<A, B> extends Functional<I<A, B>, O<A, B>> {
    constructor(system: System);
    f({ a, b }: I<A, B>, done: Done<O<A, B>>): void;
}
