/**
 * Determine if a value is an Array
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is an Array, otherwise false
 */
export declare const isArray: (val: any[]) => boolean;
/**
 * Determine if a value is an ArrayBuffer
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is an ArrayBuffer, otherwise false
 */
export declare const isArrayBuffer: (val: ArrayBuffer) => boolean;
/**
 * Determine if a value is a view on an ArrayBuffer
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
 */
export declare const isArrayBufferView: (val: ArrayBufferView) => any;
/**
 * Determine if a value is an Object
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is an Object, otherwise false
 */
export declare const isObject: (val: any) => boolean;
/**
 * Determine if a value is an Object
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is an Object, otherwise false
 */
export declare const isString: (val: any) => boolean;
/**
 * Determine if a value is a File
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a File, otherwise false
 */
export declare const isFile: (val: File) => boolean;
/**
 * Determine if a value is a Blob
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a Blob, otherwise false
 */
export declare const isBlob: (val: Blob) => boolean;
/**
 * Determine if a value is a URLSearchParams object
 *
 * @param {Object} val The value to test
 * @returns {boolean} True if value is a URLSearchParams object, otherwise false
 */
export declare const isURLSearchParams: (val: URLSearchParams) => boolean;
/**
 * Determine if value is form data
 *
 * @param val
 */
export declare const isFormData: (val: any) => boolean;
/**
 * Trim excess whitespace off the beginning and end of a string
 *
 * @param {String} str The String to trim
 * @returns {String} The String freed of excess whitespace
 */
export declare const trim: (str: any) => any;
export * from './utils.node';