class_docstr: Statistics of uploading.
class_docstr_tok: ["Statistics","of","uploading","."]
code: def has_new_data_since_last_summarize(self):
      return (
          self._last_data_added_timestamp
          > self._last_summarized_timestamp
      )
  
imports: import contextlib
  from datetime import datetime
  import sys
  import time
label_desc: Use image node_id 19 for calling the UploadStats obj's underlying member method code with example usage: obj.has_new_data_since_last_summarize() and returns: unknown