/**
 * Picks a random element from an array.
 *
 * @template T - The type of array elements.
 * @param array - The array to pick from.
 * @returns A random element from the array.
 *
 * @throws {Error} If array is empty.
 *
 * @example
 * // Pick random fruit
 * randomChoice(['apple', 'banana', 'orange']); // 'banana'
 *
 * @example
 * // Pick random number
 * randomChoice([1, 2, 3, 4, 5]); // 3
 *
 * @example
 * // Pick random object
 * randomChoice([{ id: 1 }, { id: 2 }]); // { id: 2 }
 *
 * @note Uses Math.random() for non-cryptographic randomness.
 * @note Does not modify the original array.
 *
 * @complexity Time: O(1), Space: O(1)
 */
export declare function randomChoice<T>(array: T[]): T;
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