class_docstr: Computes the sum/avg duration of some event in seconds
class_docstr_tok: ["Computes","the","sum\/avg","duration","of","some","event","in","seconds"]
code: def reset(self):
      self.sum = 0  # cumulative time during which stopwatch was active
      self.n = 0  # total n across all start/stop
      self.start()
  
imports: import bisect
  import time
  from collections import OrderedDict
  from typing import Dict, Optional
label_desc: Use image node_id 4 for calling the StopwatchMeter obj's underlying member method code with example usage: obj.reset() without return types