import { ElementRef, OnInit } from '@angular/core';
import { ButtonColor, ButtonSize } from './button.interface';
import * as i0 from "@angular/core";
export declare class ButtonDirective implements OnInit {
    el: ElementRef;
    private readonly DEFAULT_COLOR;
    private readonly DEFAULT_SIZE;
    private _color;
    get color(): ButtonColor | undefined;
    set color(v: ButtonColor | undefined);
    private _size;
    get size(): ButtonSize | undefined;
    set size(v: ButtonSize | undefined);
    get htmlElement(): HTMLElement;
    constructor(el: ElementRef);
    ngOnInit(): void;
    getClass(): string[];
    setClasses(classes: string[]): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ButtonDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<ButtonDirective, "[auBtn]", never, { "color": { "alias": "auBtnColor"; "required": false; }; "size": { "alias": "auBtnSize"; "required": false; }; }, {}, never, never, true, never>;
}