class_docstr: This class used to compute and print the current FPS while evaling.
class_docstr_tok: ["This","class","used","to","compute","and","print","the","current","FPS","while","evaling","."]
code: def clear(self):
      self.start_time = 0.0
      self.diff = 0.0
      self.duration = 0.0
  
imports: import os
  import cv2
  import time
  import numpy
  import collections
  import math
label_desc: Use image node_id 4 for calling the MOTTimer obj's underlying member method code with example usage: obj.clear() without return types