import { IHighlightSelectedSentence } from '../../tld-text/models';
import * as i0 from "@angular/core";
export declare class TldHighlightService {
    constructor();
    selectedTargetSentence: IHighlightSelectedSentence;
    private selectedTargetSentence$;
    onChangeSelectedTargetSentence(): import("rxjs").Observable<{
        previous: IHighlightSelectedSentence;
        next: IHighlightSelectedSentence;
    }>;
    changeSelectedTargetSentence(sentence: IHighlightSelectedSentence): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<TldHighlightService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<TldHighlightService>;
}
