import{MonoTypeOperatorFunction}from'../types';/** * Returns an Observable that mirrors the source Observable, but will call a specified function when * the source terminates on complete or error. * @param {function} callback Function to be called when source terminates. * @return {Observable} An Observable that mirrors the source, but will call the specified function on termination. * @method finally * @owner Observable */exportdeclarefunctionfinalize<T>(callback:()=>void):MonoTypeOperatorFunction<T>;