class_docstr: Threaded Class to calculate average FPS based on time.perf_counter() python module
docstr: counts frames
code: def update(self):
      """
      counts frames
      """
      self.__numFrames += 1
  
file_path: vidgear/vidgear/tests/utils/fps.py
imports: import time
  import numpy
  from threading import Thread
label_desc: Use image node_id 4 for calling the FPS obj's underlying member method code with example usage: obj.update() without return types