/**
 * Creates a duplicate-free version of an array.
 *
 * This function takes an array and returns a new array containing only the unique values
 * from the original array, preserving the order of first occurrence.
 *
 * @template T - The type of elements in the array.
 * @param {ArrayLike<T> | null | undefined} arr - The array to process.
 * @returns {T[]} A new array with only unique values from the original array.
 *
 * @example
 * const array = [1, 2, 2, 3, 4, 4, 5];
 * const result = uniq(array);
 * // result will be [1, 2, 3, 4, 5]
 */
declare function uniq<T>(arr: ArrayLike<T> | null | undefined): T[];

export { uniq };