import { type Reference } from "@knyt/artisan";
import { type ReactiveController, type ReactiveControllerHost } from "@knyt/tasker";
/**
 * A controller that manages deferred content rendering based on the state of associated promises.
 *
 * @internal scope: package
 */
export declare class DeferredContentController implements ReactiveController {
    #private;
    readonly isLoading$: Reference.Readonly<boolean>;
    constructor(host: ReactiveControllerHost & HTMLElement);
    registerPromise<T extends Promise<any>>(promise: T): T;
    unregisterPromise<T extends Promise<any>>(promise: T): void;
    hostConnected(): void;
}
//# sourceMappingURL=DeferredContentController.d.ts.map