export declare class PositionService { private window; private document; private getStyle(nativeEl, cssProp); private isStaticPositioned(nativeEl); private parentOffsetEl(nativeEl); position(nativeEl: any): { width: number; height: number; top: number; left: number; }; offset(nativeEl: any): { width: number; height: number; top: number; left: number; }; positionElements(hostEl: any, targetEl: any, positionStr: any, appendToBody: any): { top: number; left: number; }; } export declare const positionService: PositionService;