import { Functional } from '../../../../../Class/Functional';
import { Done } from '../../../../../Class/Functional/Done';
import { System } from '../../../../../system';
import { E } from '../../../../../types/interface/composed/E';
export interface I {
    parent: E;
    at: number;
}
export interface O {
    test: boolean;
}
export default class HasChild extends Functional<I, O> {
    constructor(system: System);
    f({ parent, at }: I, done: Done<O>): void;
}
