code: def saveThumbnail(self,fileName,filePath):
          
          if self._thumbnail is None:
              self.__init()
          param_dict = {}
          if  self._thumbnail is not None:
              imgUrl = self.root + "/info/" + self._thumbnail
              onlineFileName, file_ext = splitext(self._thumbnail)
              fileNameSafe = "".join(x for x in fileName if x.isalnum()) + file_ext
              result = self._get(url=imgUrl,
                                 param_dict=param_dict,
                                 securityHandler=self._securityHandler,
                                 proxy_url=self._proxy_url,
                                 proxy_port=self._proxy_port,
                                 out_folder=filePath,
                                 file_name=fileNameSafe)
              return result
          else:
              return None
docs: URL to the thumbnail used for the item