class_docstr: Statistics of uploading.
class_docstr_tok: ["Statistics","of","uploading","."]
code: def _refresh_last_data_added_timestamp(self):
      self._last_data_added_timestamp = time.time()
  
imports: import contextlib
  from datetime import datetime
  import sys
  import time
label_desc: Use image node_id 21 for calling the UploadStats obj's underlying member method code with example usage: obj._refresh_last_data_added_timestamp() without return types