class_docstr: Polls smi in a forked child process, saves measurements to instance vars
code: def __writeToPipe(fd, strToWrite):
      fd.write(strToWrite)
      fd.flush()
  
file_path: cugraph/python/utils/gpu_metric_poller.py
imports: import os
  import sys
  import threading
  from pynvml import smi
label_desc: Use image node_id 3 for calling the GPUMetricPoller obj's underlying member method code with example usage: obj.__writeToPipe(fd, strToWrite) without return types