import { FrameContexts } from '../public/constants';
export declare class GlobalVars {
    static initializeCalled: boolean;
    static initializeCompleted: boolean;
    static additionalValidOrigins: string[];
    static initializePromise: Promise<void> | undefined;
    static isFramelessWindow: boolean;
    static frameContext: FrameContexts | undefined;
    static hostClientType: string | undefined;
    static clientSupportedSDKVersion: string;
    static printCapabilityEnabled: boolean;
    static readonly teamsJsInstanceId: string;
}