import { ChangeDetectorRef, ElementRef, OnDestroy, OnInit, Renderer2, ViewContainerRef } from '@angular/core';
import { Overlay } from '@angular/cdk/overlay';
import { TypeaheadComponent } from './typeahead.component';
export declare class TypeaheadDirective implements OnInit, OnDestroy {
    private viewContainerRef;
    private overlay;
    private elementRef;
    private renderer;
    private cdr;
    private overlayRef;
    private subscriptions;
    typeahead: TypeaheadComponent;
    onFocus(): void;
    constructor(viewContainerRef: ViewContainerRef, overlay: Overlay, elementRef: ElementRef, renderer: Renderer2, cdr: ChangeDetectorRef);
    ngOnInit(): void;
    ngOnDestroy(): void;
    private attachOverlay;
    private _getOverlayConfig;
    private getPositionStrategy;
    /** Returns the width of the input element, so the panel width can match it. */
    private _getHostWidth;
}