export interface GApi {
    load(what: 'auth2', callback: () => void): any;
    auth2: GApiAuth2;
}
export interface GApiAuth2InitOptions {
    client_id: string;
    scope?: string;
}
export interface GApiAuth2 {
    init(options: GApiAuth2InitOptions): Promise<GApiAuth2Instance>;
}
export declare type GApiAuth2InstanceIsSignedInListener = (isSignedIn: boolean) => void;
export declare type GApiAuth2InstanceCurrentUserListener = (isSignedIn: GApiAuth2User) => void;
export interface GApiAuth2Instance {
    signIn(): Promise<GApiAuth2User>;
    signOut(): Promise<void>;
    isSignedIn: {
        get(): boolean;
        listen(listener: GApiAuth2InstanceIsSignedInListener): any;
    };
    currentUser: {
        get(): GApiAuth2User;
        listen(listener: GApiAuth2InstanceCurrentUserListener): any;
    };
}
export interface GApiAuth2User {
    getId(): string;
    isSignedIn(): boolean;
    getHostedDomain(): string;
    getGrantedScopes(): string;
    getBasicProfile(): GApiAuth2BasicProfile;
    getAuthResponse(): GApiAuth2AuthResponse;
    reloadAuthResponse(): Promise<GApiAuth2AuthResponse>;
    hasGrantedScopes(scopes: string): boolean;
}
export interface GApiAuth2BasicProfile {
    getId(): string;
    getName(): string;
    getGivenName(): string;
    getFamilyName(): string;
    getImageUrl(): string;
    getEmail(): string;
}
export interface GApiAuth2AuthResponse {
    access_token: string;
    id_token: string;
    scope: string;
    expires_in: string;
    first_issued_at: string;
    expires_at: string;
}
export declare const getGapi: () => Promise<GApi>;
export declare const getGapiAuth2: () => Promise<GApiAuth2>;
export declare const getGapiAuthInstance: (options: GApiAuth2InitOptions) => Promise<GApiAuth2Instance>;