import type { UmbContextToken } from '../token/index.js';
/**
 * @class UmbContextBoundary
 */
export declare class UmbContextBoundary {
    #private;
    /**
     * Creates an instance of UmbContextBoundary.
     * @param {EventTarget} eventTarget - the host element for this context provider
     * @param {string | UmbContextToken} contextIdentifier - a string or token to identify the context
     * @param {*} instance - the instance to provide
     * @memberof UmbContextBoundary
     */
    constructor(eventTarget: EventTarget, contextIdentifier: string | UmbContextToken<any>);
    /**
     * @memberof UmbContextBoundary
     */
    hostConnected(): void;
    /**
     * @memberof UmbContextBoundary
     */
    hostDisconnected(): void;
    destroy(): void;
}