export declare function isType(type: string, value: any): boolean;
export declare function isNumber(value: any): value is number;
export declare function isInteger(value: any): value is number;
export declare function isFunction(value: any): value is Function;
export declare function not(value: any): boolean;
export declare function isObject(value: any): value is object;
export declare function merge<TObject, TSource>(target: TObject, source: TSource): TObject & TSource;