code: def pk(a1, a2):
      return (1 + a1 * a2) * (1 + a1 * a2)
  
imports: from numpy import *
  import qld
  import matplotlib.pyplot
  from mystic.svr import *
label_desc: Use image node_id 1 for calling a global function with example usage: pk(a1, a2) and returns: unknown