export declare class Num {
    /**
     * Returns whether the given value is a number
     * @param  {any}     value The value to check
     * @return {boolean}       True if the value is a number, otherwise false
     */
    static isNumber(value: any): boolean;
    /**
     * Returns whether any of the numbers in the given list of arguments
     * are not a number.
     * @param  {any[]}   ...nums A list of number arguments to check
     * @return {boolean}         True if there exists at least one number in the list
     * that is not a number.
     */
    static isNaN(...nums: any[]): boolean;
    /**
     * Returns whether any of the given arguments are negative numbers
     * @param  {number[]} ...args The list of arguments to check
     * @return {boolean}          True if at least 1 argument is a negative number
     */
    static isNegative(...args: number[]): boolean;
    /**
     * Returns whether all of the given arguments are non-negative numbers
     * @param  {number[]} ...args The list of arguments to check
     * @return {boolean}          True if all arguments are non-negative numbers
     */
    static isNonNegative(...args: number[]): boolean;
    /**
     * Returns whether the two given numbers have the same mathematical sign.
     * @param  {number}  a The first value to compare
     * @param  {number}  b The second value to compare
     * @return {boolean}   True if both numbers have the same sign, otherwise false
     */
    static sameSign(a: number, b: number): boolean;
    /**
     * Returns a dictionary of enum name as a string to its enum value as a number
     * @param  {any} list The enum list to iterate
     * @return {any}      The resulting enum set
     */
    static getEnumDictionary(list: any): any;
    /**
     * Returns an enum list as an array of enum string names
     * @param  {any}      list The enum list to iterate
     * @return {string[]}      The array of enum names as strings
     */
    static getEnumNames(list: any): string[];
    /**
     * Returns a list of enum values as an array of numbers
     * @param  {any}      list The enum list to iterate
     * @return {number[]}      The resulting array of enum value numbers
     */
    static getEnumValues(list: any): number[];
}