code: def toc(t=None, name='tictoc'):
      
      try:
          t = t or tic.last_tic_time
      except AttributeError:
          # tic()부터 콜하세요
          logg.warn('calling tic() need to use toc()')
          return
      elapsed = time.time() - t
      logg.info('%s Elapsed: %s secs' % (name, elapsed))
      return elapsed
docs: ex1)
      tic()  # save start time - time1
      toc()  # print elapsed time from last calling tic()
      toc()  # print elapsed time from last calling tic()
  
      ex2)
      t0 = tic()  # simple
      t1 = tic()
      toc(t1)  # print time from t1
      toc(t0)  # print time from t0
  
      :param t: time: 시작 시간 (tic()의 리턴 값)
      :param name: str: 출력시 포함할 문자 ['tictoc']