class_docstr: Tracker for uploader progress and status.
class_docstr_tok: ["Tracker","for","uploader","progress","and","status","."]
code: def _dummy_generator(self):
      while True:
          # Yield an arbitrary value 0: The progress bar is indefinite.
          yield 0
  
imports: import contextlib
  from datetime import datetime
  import sys
  import time
label_desc: Use image node_id 2 for calling the UploadTracker obj's underlying member method code with example usage: obj._dummy_generator() without return types