/**
 * Generates a dynamic secret (DS) string for use in the Genshin Impact API.
 *
 * @returns The generated DS string.
 */
export declare function generateDS(): string;
/**
 * Delays the execution of the code for a specified number of seconds.
 * @param second - The number of seconds to delay.
 * @returns A Promise that resolves after the specified number of seconds.
 */
export declare function delay(second: number): Promise<void>;