docs: def _augment_file(self, f):
          """
          Augment a FileRecord with methods to get the data URL and to download, returning the updated file for use
          in generator functions
          :internal:
          """
  
          def get_url(target):
              if target.file_size is None:
                  return None
              if target.file_name is not None:
                  return self.base_url + '/files/content/{0}/{1}'.format(target.file_id.hex, target.file_name)
              else:
                  return self.base_url + '/files/content/{0}'.format(target.file_id.hex, )
  
          f.get_url = types.MethodType(get_url, f)
  
          def download_to(target, file_name):
              url = target.get_url()
              r = requests.get(url, stream=True)
              with open(file_name, 'wb') as file_to_write:
                  for chunk in r.iter_content(chunk_size=1024):
                      if chunk:  # filter out keep-alive new chunks
                          file_to_write.write(chunk)
                          file_to_write.flush()
              return file_name
  
          f.download_to = types.MethodType(download_to, f)
          return f