import { Functional } from '../../../../../Class/Functional';
import { Done } from '../../../../../Class/Functional/Done';
import { System } from '../../../../../system';
import { J } from '../../../../../types/interface/J';
export interface I<T> {
    obj: J;
    key: string;
}
export interface O<T> {
    has: boolean;
}
export default class HasKey<T> extends Functional<I<T>, O<T>> {
    constructor(system: System);
    f({ obj, key }: I<T>, done: Done<O<T>>): Promise<void>;
}
