export declare class NumberUtils {
    /**
     * Calculates sum of all numbers in an array
     * @param values Array of numbers
     * @returns Sum of numbers in array
     */
    static sum(values: number[]): number;
    /**
     * Checks if all numbers in a given array are finite
     * @param values array of numbers
     * @returns true if all numbers are finite, else false
     */
    static areFinite(values: number[]): boolean;
}