code: def rough_timeit(callable, n):
      assert n > 0
      tot = 0
      for _ in range(n):
          s = time.time()
          callable()
          tot += time.time() - s
      return tot / n
  
imports: import numpy
  import time
  import torch
label_desc: Use image node_id 1 for calling a global function with example usage: rough_timeit(callable, n) and returns: unknown