code: def pascal_(n):
      def nextrow(row, x):
          return [
              l + r
              for l, r in zip(
                  row
                  + [
                      0,
                  ],
                  [
                      0,
                  ]
                  + row,
              )
          ]
  
      return scan(
          nextrow,
          range(n - 1),
          [
              1,
          ],
      )
  
label_desc: Use image node_id 3 for calling a global function with example usage: pascal_(n) and returns: scan, unknown