export declare class EmptyLanguageProviderMock {
    metrics: never[];
    constructor();
    start(): Promise<unknown>;
    retrieveMetrics: jest.Mock<any, any, any>;
    queryLabelKeys: jest.Mock<any, any, any>;
    queryLabelValues: jest.Mock<any, any, any>;
    retrieveLabelKeys: jest.Mock<any, any, any>;
    retrieveMetricsMetadata: jest.Mock<any, any, any>;
    queryMetricsMetadata: jest.Mock<any, any, any>;
}