import { ElementRef, EventEmitter, OnDestroy, OnInit } from '@angular/core';
import * as i0 from "@angular/core";
export declare class ObserveSizeDirective implements OnInit, OnDestroy {
    private host;
    widthChange: EventEmitter<number>;
    heightChange: EventEmitter<number>;
    private _resizeObserver?;
    private _lastWidth;
    private _lastHeight;
    constructor(host: ElementRef<HTMLElement>);
    ngOnInit(): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ObserveSizeDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<ObserveSizeDirective, "[observeSize]", never, {}, { "widthChange": "widthChange"; "heightChange": "heightChange"; }, never, never, true, never>;
}
//# sourceMappingURL=observe-size.directive.d.ts.map