text: import numpy as np
  import ffht
  import timeit
  import sys
  
  reps = 1000
  n = 2**20
  chunk_size = 1024
  
  a = np.random.randn(n).astype(np.float32)
  
  t1 = timeit.default_timer()
  for i in range(reps):
      ffht.fht(a)
  t2 = timeit.default_timer()
  
  if sys.version_info[0] == 2:
      print (t2 - t1 + 0.0) / (reps + 0.0)
  if sys.version_info[0] == 3:
      print('{}'.format((t2 - t1 + 0.0) / (reps + 0.0)))
  