export default class Array {
    /**
     * Gets the maximum value in an array.
     */
    static minimizeBy<T>(arr: T[], fn: (item: T) => number): T;
    /**
     * Gets the minimum value in an array.
     */
    static maximizeBy<T>(arr: T[], fn: (item: T) => number): T;
    /**
     * Sum all the values in an array.
     */
    static sum(arr: number[]): number;
    /**
     * Get the average (mean) of an array of numbers.
     */
    static average(arr: number[]): number;
    /**
     * Performs a convolution on a 2D array.
     */
    static convolve2D(arr: number[][], kernel: number[][]): number[][];
}