class_docstr: Tracker for uploader progress and status.
class_docstr_tok: ["Tracker","for","uploader","progress","and","status","."]
docstr: Write a timestamped single line, with newline, to stdout.
code: def _single_line_message(self, message):
      """Write a timestamped single line, with newline, to stdout."""
      if not self._verbosity:
          return
      start_message = "%s[%s]%s %s\n" % (
          _STYLE_BOLD,
          readable_time_string(),
          _STYLE_RESET,
          message,
      )
      sys.stdout.write(start_message)
      sys.stdout.flush()
  
imports: import contextlib
  from datetime import datetime
  import sys
  import time
label_desc: Use image node_id 4 for calling the UploadTracker obj's underlying member method code with example usage: obj._single_line_message(message) without return types