/**
 * Retries an asynchronous function a specified number of times until it succeeds
 * or the retry count is exhausted.
 *
 * @template T The type of the value that the function returns.
 * @param fn The asynchronous function to retry.
 * @param retries The number of times to retry the function. Must be a positive number.
 *                Defaults to 3 if not specified.
 * @returns A Promise that resolves with the function's return value if it succeeds,
 *          or rejects with the last error encountered if all retries fail.
 * @throws {TypeError} If the first argument is not a function.
 * @throws {RangeError} If the retries parameter is not a positive number.
 * @throws {Error} If the function does not succeed within the retry attempts.
 */
export declare function retry<T>(fn: () => Promise<T>, retries?: number): Promise<T>;