new_contents: import yappi
  import time
  import threading
  import sys
  
  class MyThread(threading.Thread):
      def run(self):
          time.sleep(1)
  
  n =     25
  
  yappi.start()
  for i in range(0,n):
      c = MyThread()
      c.start()
  time.sleep(1)
  yappi.print_stats()
  yappi.stop()
subject: include tests folder. Add your local tests in the future.