import { Observable, Subject } from 'rxjs';
import { DestroyableClass } from '../utils/DestroyableClass';
import { SettingsInterface } from './SettingsInterface';
export declare abstract class SettingsManager<InputSettings extends object, OutputSettings extends Record<string, unknown>> extends DestroyableClass implements SettingsInterface<InputSettings, OutputSettings> {
    protected inputSettings: InputSettings;
    protected outputSettings?: OutputSettings;
    protected outputSettingsUpdateSubject: Subject<OutputSettings>;
    _settings$: Observable<OutputSettings>;
    constructor(initialSettings: Partial<InputSettings>);
    _prepareUpdate(settings: Partial<InputSettings>): {
        hasChanged: boolean;
        state: OutputSettings;
        commit: () => OutputSettings;
    };
    abstract getOutputSettings(inputSettings: InputSettings): OutputSettings;
    abstract getDefaultSettings(): InputSettings;
    update(settings: Partial<InputSettings>): void;
    get values(): OutputSettings;
    get values$(): Observable<OutputSettings>;
    watch<K extends keyof OutputSettings>(keys: K[]): Observable<Pick<OutputSettings, K>>;
    destroy(): void;
}