export declare const randomNum: (n: any) => string;
export declare const toArray: (list: any, start: any) => any[];
export declare const encodeHtml: (str: any) => any;
export declare const isString: (obj: any) => boolean;
export declare const isNonEmptyString: (obj: any) => boolean;
export declare const isPureObject: (obj: any) => boolean;
export declare const isUrl: (url: any) => boolean;
export declare const urlJoin: () => string;
/**
 * Wraps value in array if it is not already an array
 *
 * @param  {any} value
 * @return {array}
 */
export declare const wrapArray: (value: any) => any[];
export declare const stripWhitespace: (string: any) => any;