export declare const isObject: (value: unknown) => value is object;
export declare const isNonArrayObject: (value: unknown) => value is object;
export declare const isNonNegativeNumber: (value: unknown) => value is number;
export declare const isError: (value: unknown) => value is Error;
export declare const isRequest: (value: unknown) => value is Request;
export declare const isResponse: (value: unknown) => value is Response;