code: def description(self) -> str:
      if self.__description is None:
          return ""
      return self.__description
  
imports: from typing import List, Optional
  import io, pyarrow, requests, sys
  from graphistry.privacy import Mode, Privacy
  from .ArrowFileUploader import ArrowFileUploader
  from .util import setup_logger
label_desc: Use image node_id 21 for calling the ArrowUploader obj's underlying member method code with example usage: obj.description() and returns: self, str