import { AfterViewInit, DoCheck, ElementRef, Renderer2 } from '@angular/core';
import * as i0 from "@angular/core";
/**
 * Autosize textarea.
 * This directive should be used on a textarea tag.
 * It will update the textarea height when needed.
 */
export declare class SingTextareaAutosizeDirective implements AfterViewInit, DoCheck {
    private elem;
    private renderer;
    overflow: string;
    rows: number;
    constructor(elem: ElementRef, renderer: Renderer2);
    ngAfterViewInit(): void;
    ngDoCheck(): void;
    private resize;
    private setHeight;
    static ɵfac: i0.ɵɵFactoryDeclaration<SingTextareaAutosizeDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<SingTextareaAutosizeDirective, "[singTextareaAutosize]", never, { "rows": "rows"; }, {}, never, never, false, never>;
}
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