export declare class Expect {
    toFail: (expectedMessage?: RegExp) => void;
    toInfer: (variableName: string, expectedType: string) => void;
    toSucceed: () => void;
    constructor(toFail: (expectedMessage?: RegExp) => void, toInfer: (variableName: string, expectedType: string) => void, toSucceed: () => void);
}