code: def pascal(n):
      """Prints out n rows of Pascal's triangle.
      It returns False for failure and True for success."""
      row = [1]
      k = [0]
      for x in range(max(n, 0)):
          print(row)
          row = [l + r for l, r in zip(row + k, k + row)]
      return n >= 1
  
label_desc: Use image node_id 1 for calling a global function with example usage: pascal(n) and returns: unknown