code: public static AssetVersionFetcher fetcher(final String pathServiceSid, 
                                                final String pathAssetSid, 
                                                final String pathSid) {
          return new AssetVersionFetcher(pathServiceSid, pathAssetSid, pathSid);
      }
docs: Create a AssetVersionFetcher to execute fetch.
  
  @param pathServiceSid The service_sid
  @param pathAssetSid The asset_sid
  @param pathSid The sid
  @return AssetVersionFetcher capable of executing the fetch