def get_uploads(self, field_name=None):
    if self.__uploads is None:
      self.__uploads = collections.defaultdict(list)
      for key, value in self.request.params.items():
        if isinstance(value, cgi.FieldStorage):
          if 'blob-key' in value.type_options:
            self.__uploads[key].append(blobstore.parse_blob_info(value))

    if field_name:
      return list(self.__uploads.get(field_name, []))
    else:
      results = []
      for uploads in self.__uploads.itervalues():
        results.extend(uploads)
      return results
Register loader and the Loader instance for its kind.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/webapp/blobstore_handlers.py/BlobstoreUploadHandler.get_uploads--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/tools/bulkloader.py/Loader.RegisterLoader