code: def tracker_print(msg):
      
      if not isinstance(msg, STRING_TYPES):
          msg = str(msg)
      is_dist = _LIB.RabitIsDistributed()
      if is_dist != 0:
          _LIB.RabitTrackerPrint(c_str(msg))
      else:
          sys.stdout.write(msg)
          sys.stdout.flush()
docs: Print message to the tracker.
  
      This function can be used to communicate the information of
      the progress to the tracker
  
      Parameters
      ----------
      msg : str
          The message to be printed to tracker.