import { Functional } from '../../../../Class/Functional';
import { Done } from '../../../../Class/Functional/Done';
import { System } from '../../../../system';
import { Dict } from '../../../../types/Dict';
export interface I<T> {
    obj: Dict<T>;
}
export interface O<T> {
    keys: string[];
}
export default class Keys<T> extends Functional<I<T>, O<T>> {
    constructor(system: System);
    f(i: I<T>, done: Done<O<T>>): void;
}
