/**
 * @typedef {(this: import('barnard59-core').Context, chunk: From, ...args: Args) => Promise<To> | To} MapCallback
 * @template From, To
 * @template {Array<unknown>} Args
 */
/**
 * @typedef {{
 *   map: MapCallback<From, To, Args>
 *   concurrency?: number
 *   ordered?: boolean
 *   objectMode?: boolean
 * }|MapCallback<From, To, Args>} MapOptions
 * @template From, To
 * @template {Array<unknown>} Args
 */
/**
 * Processes chunks with a transform function
 *
 * @this {import('barnard59-core').Context}
 * @param {MapOptions<From, To, Args>} options Transform function or complex options
 * @param {Args} args Additional arguments to pass to the transform function
 * @return {import('stream').Transform}
 * @template From, To
 * @template {Array<unknown>} Args
 */
export default function map<From, To, Args extends unknown[]>(this: import("barnard59-core").Context, options: MapOptions<From, To, Args>, ...args: Args): import('stream').Transform;
export type MapCallback<From, To, Args extends unknown[]> = (this: import('barnard59-core').Context, chunk: From, ...args: Args) => Promise<To> | To;
export type MapOptions<From, To, Args extends unknown[]> = {
    map: MapCallback<From, To, Args>;
    concurrency?: number;
    ordered?: boolean;
    objectMode?: boolean;
} | MapCallback<From, To, Args>;