import { Client } from "./client";
import { FriendRequestEvent, GroupInviteEvent, GroupRequestEvent } from "./event";
export declare class Request<T extends keyof RequestEventMap, CT extends keyof RequestEventMap[T]> {
    c: Client;
    request_type: T;
    sub_type: CT;
    post_type: "request";
    flag?: string;
    constructor(c: Client, request_type: T, sub_type: CT, $json: Record<string, any>);
    static from<T extends keyof RequestEventMap, CT extends keyof RequestEventMap[T]>(this: Client, request_type: T, sub_type: CT, event: Record<string, any>): RequestEventMap[T][CT];
}
export declare class GroupRequest<T extends keyof RequestEventMap['group']> extends Request<'group', T> {
    constructor(c: Client, request_type: 'group', sub_type: T, $json: Record<string, any>);
    approve(agree?: boolean, reason?: string): void;
}
export declare class FriendRequest<T extends keyof RequestEventMap['friend']> extends Request<'friend', T> {
    constructor(c: Client, request_type: 'friend', sub_type: T, $json: Record<string, any>);
    approve(agree?: boolean, remark?: string): void;
}
interface RequestEventMap {
    group: {
        add: GroupRequestEvent;
        invite: GroupInviteEvent;
    };
    friend: {
        add: FriendRequestEvent;
    };
}
export {};