import { ReactiveController, ReactiveControllerHost } from 'lit';
import { Logger } from '../logger';
import { Context } from './context';
import { ContextConsumerController } from './ContextConsumerController';
/**
 * Handles managing multiple context consumers on a given DOM element (`ref`).
 */
export declare abstract class ContextConsumerManager implements ReactiveController {
    protected readonly _host: ReactiveControllerHost;
    protected _ref?: Element;
    protected _logger: Logger;
    protected _hasHostConnected: boolean;
    protected readonly _consumers: Map<Context<any>, ContextConsumerController<any>>;
    constructor(_host: ReactiveControllerHost);
    setRef(newRef?: Element): void;
    protected _handleRefChange(newRef?: Element): void;
    hostConnected(): void;
    hostDisconnected(): void;
    addContext(context: Context<any>): ContextConsumerController<any>;
    removeContext(context: Context<any>): void;
    protected abstract _handleContextConnect(consumer: ContextConsumerController<any>): any;
    protected abstract _handleContextUpdate(consumer: ContextConsumerController<any>): any;
    protected abstract _handleContextDisconnect(consumer: ContextConsumerController<any>): any;
}