export interface ObjectSpec {
    label?: string;
    data: any;
    expect?: any;
}
export declare type ArraySpec = [any, any];
export declare type ValueSpec = any;
export declare type Spec = ObjectSpec | ArraySpec | ValueSpec;
export declare type TestFunction = (data: any, expect: any, spec: Spec) => void;
export declare type FormatFunction = (data: any) => string;
export declare function dataDrivenTest(tests: Spec[], testIt: TestFunction, formatter?: typeof format): void;
declare function format(o: any): string;
export declare function expFormat(x: any): string;
export {};