export declare const createCustomSheet: (curTheme?: 'dark' | 'light') => void;
export declare const renderPopupLoading: (container: HTMLDivElement, curTheme: 'dark' | 'light') => void;
export declare const removePopupLoading: (isShowMockup?: boolean) => void;
export declare const insertStyleSheet: () => void;
export declare const createModal: ({ device, url, widthPadding, loadingConfig }: {
    device: any;
    url: any;
    widthPadding: any;
    loadingConfig: any;
}) => Promise<HTMLIFrameElement>;
export declare const destroyModal: () => void;
