code: def _prod(iterable):
      """
      Product of a list of numbers.
      Faster than np.prod for short lists like array shapes.
      """
      product = 1
      for x in iterable:
          product *= x
      return product
  
file_path: cusignal/python/cusignal/convolution/convolution_utils.py
imports: import timeit
  import cupy
  import numpy
label_desc: Use image node_id 4 for calling a global function with example usage: _prod(iterable) and returns: product