code: def camel(x, y):
      x2 = math.pow(x, 2)
      x4 = math.pow(x, 4)
      y2 = math.pow(y, 2)
  
      return (
          (4.0 - 2.1 * x2 + (x4 / 3.0)) * x2
          + x * y
          + (-4.0 + 4.0 * y2) * y2
      )
  
label_desc: Use image node_id 1 for calling a global function with example usage: camel(x, y) and returns: unknown