export declare class UserInterfaceBackendService {
    private iocInstances;
    constructor(iocInstances: any);
    showLoading(): void;
    hideLoading(): void;
    showError(): void;
    showMessage(): void;
    showToast(): void;
    getApparea(): Promise<string>;
    getUserIdentity(): Promise<{
        userName: string;
        name: string;
        email: string;
        defaultAppCode: string;
        currentAppArea: string;
        userType: 'M' | 'B' | 'D';
        email_verified: boolean;
        roleId: string;
    }>;
    getUsername(): Promise<string>;
}