import { type ObservableLike, Observable } from "./Observable.js";
/**
 * Calls the callback function for each value emitted by the observable and
 * emits the value returned by the callback function.
 */
export declare function map<T, U>(callback: (value: T) => U): (observable: ObservableLike<T>) => Observable<U>;
//# sourceMappingURL=map.d.ts.map