import { LitElement } from 'lit';
import { Constructor } from './constructor.js';

export declare class SbbUpdateSchedulerMixinType {
    protected startUpdate(): void;
    protected completeUpdate(): void;
}
/**
 * This mixin allows scheduling manual updates, which affect updateComplete.
 * @param base The class to extend.
 * @returns A class extended with the slot child observer functionality.
 */
export declare const SbbUpdateSchedulerMixin: <T extends Constructor<LitElement>>(base: T) => Constructor<SbbUpdateSchedulerMixinType> & T;
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