code: def postprocessing_qnode(x, y, z):
      return np.sum(_postprocessing_qnode(x, y, z))
  
imports: import functools
  import pytest
  from scipy.optimize import shgo
  import pennylane
  from pennylane import numpy
  from pennylane.utils import _flatten, unflatten
  from pennylane.optimize import RotosolveOptimizer
label_desc: Use image node_id 12 for calling a global function with example usage: postprocessing_qnode(x, y, z) and returns: np