import { InjectionToken, type Provider, type Type } from '@angular/core';
import { type TuiRectAccessor } from '@taiga-ui/core/classes';
/**
 * Viewport accessor
 */
export declare const TUI_VIEWPORT: InjectionToken<TuiRectAccessor>;
export declare function tuiAsViewport(accessor: Type<TuiRectAccessor>): Provider;