code: def zip(*nests):
      n0, *nests = nests
      iters = [flatten(n) for n in nests]
  
      def f(first):
          return [first] + [next(i) for i in iters]
  
      return map(f, n0)
  
label_desc: Use image node_id 3 for calling a global function with example usage: zip() and returns: map, unknown