code: public static MediaFetcher fetcher(final String pathAccountSid, 
                                         final String pathMessageSid, 
                                         final String pathSid) {
          return new MediaFetcher(pathAccountSid, pathMessageSid, pathSid);
      }
docs: Create a MediaFetcher to execute fetch.
  
  @param pathAccountSid The SID of the Account that created the resource(s) to
  fetch
  @param pathMessageSid The SID of the Message resource that this Media
  resource belongs to
  @param pathSid The unique string that identifies this resource
  @return MediaFetcher capable of executing the fetch