import { InputSignal, WritableSignal, OutputEmitterRef } from '@angular/core';
import type { AutoHighlightResult } from 'highlight.js';
import { HighlightBase } from './highlight-base';
import * as i0 from "@angular/core";
export declare class HighlightAuto extends HighlightBase {
    code: InputSignal<string>;
    highlightResult: WritableSignal<AutoHighlightResult>;
    readonly languages: InputSignal<string[]>;
    highlighted: OutputEmitterRef<AutoHighlightResult>;
    protected highlightElement(code: string): Promise<void>;
    static ɵfac: i0.ɵɵFactoryDeclaration<HighlightAuto, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<HighlightAuto, "[highlightAuto]", never, { "code": { "alias": "highlightAuto"; "required": false; "isSignal": true; }; "languages": { "alias": "languages"; "required": false; "isSignal": true; }; }, { "highlighted": "highlighted"; }, never, never, true, never>;
}