/**
 * Converts an object of weighted file paths into an array where each file appears
 * multiple times based on its weight.
 *
 * @example
 * weightedFiles({ 'song1.mp3': 2, 'song2.mp3': 1 })
 * // returns ['song1.mp3', 'song1.mp3', 'song2.mp3']
 *
 * @param {Object.<string, number>} files - Object with file paths as keys and weights as values
 * @returns {string[]} Array of file paths repeated according to their weights
 */
export declare const weightedFiles: (files: {
    [key: string]: number;
}) => string[];
/**
 * Shuffles an array of strings using the Fisher-Yates algorithm.
 * Creates a new array instead of modifying the original.
 *
 * @example
 * shuffle(['a', 'b', 'c'])
 * // might return ['b', 'c', 'a']
 *
 * @param {string[]} list - Array of strings to shuffle
 * @returns {string[]} New array with shuffled elements
 */
export declare const shuffle: (list: string[]) => string[];
/**
 * Preloads audio files in batches with a specified limit.
 * Uses a queue system to load files sequentially after the initial batch.
 *
 * @param {string[]} files - Array of file URLs to preload
 * @param {number} limit - Maximum number of files to load simultaneously
 * @param {Function} [api=fetch] - Function to use for fetching files
 * @param {Function} [done] - Callback function to execute when all files are loaded
 */
export declare const preloadFiles: (files: string[], limit: number, api?: (input: string, init?: RequestInit | undefined) => Promise<Response>, done?: () => void) => void;