import { BaseManager, KernelSpec } from '@jupyterlab/services';
import { ISpecModels } from '@jupyterlab/services/lib/kernelspec/restapi';
import { ISignal } from '@lumino/signaling';
export declare class VoilaKernelSpecManager extends BaseManager implements KernelSpec.IManager {
    specsChanged: ISignal<this, ISpecModels>;
    connectionFailure: ISignal<this, Error>;
    readonly specs: ISpecModels | null;
    refreshSpecs(): Promise<void>;
    get isReady(): boolean;
    get ready(): Promise<void>;
}