export declare function isFunction<T>(value: any): value is T;
export declare function isPlainObject(value: any): boolean;
export declare function isString(value: any): value is string;
export declare function isBoolean(value: any): value is boolean;
export declare function isPromise(promise: any): boolean;
export declare function notEmptyValue(value: string | string[]): boolean;
export declare function transformStringToArray(value: string | string[]): string[];