code: def gcd_list(L):
      gcd = L[0]
      for i in L:
          gcd = np.gcd(gcd, i)
      return gcd
  
imports: import csv
  import logging
  import torch
  import numpy
  from .attr import get_nested_attr
label_desc: Use image node_id 2 for calling a global function with example usage: gcd_list(L) and returns: gcd