import { OnDestroy } from '@angular/core';
import { Platform } from './platform.service';
export declare class Patch implements OnDestroy {
    private _platform;
    private _hasPatchedMobileVerticalHeight;
    private _subscriptions;
    constructor(_platform: Platform);
    mobileVerticalHeight(): void;
    ngOnDestroy(): void;
    private periodicallySetDocumentVerticalProperty;
}
