/**
 * Randomly shuffles an array using the Fisher-Yates algorithm.
 *
 * @template T - The type of elements in the array.
 * @param array - The array to shuffle.
 * @param inPlace - Whether to shuffle in-place or return a new array (default: false).
 * @returns A shuffled array.
 *
 * @throws {Error} If array is empty.
 *
 * @example
 * // Shuffle and return new array
 * randomShuffle([1, 2, 3, 4, 5]); // [3, 1, 5, 2, 4]
 *
 * @example
 * // Shuffle in-place
 * const arr = [1, 2, 3, 4, 5];
 * randomShuffle(arr, true); // arr is now shuffled
 *
 * @note Uses Fisher-Yates shuffle for uniform distribution.
 *
 * @complexity Time: O(n), Space: O(n) for new array or O(1) for in-place
 */
export declare function randomShuffle<T>(array: T[], inPlace?: boolean): T[];
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