code: def syn_cnn_2_z_x(z, x):
      """Computes the Branin function."""
      cnn = x[2]
      chooser = x[1][0] + x[1][1]
      y1 = x[0][0]
      y2 = x[0][1]
      y3 = (x[3] - 10.0) / 4
      y4 = x[4] / 100
      # compute individual functions
      a = syn_func1_common(cnn) * z[0]
      b = _chooser_park(chooser, y1, y2, y3, y4)
      c = _park(z[0], z[1], y2, y1, y4, y3)
      return a * b + c
  
file_path: dragonfly/examples/synthetic/syn_cnn_2/syn_cnn_2.py
imports: import numpy
  from dragonfly.nn.syn_nn_functions import syn_func1_common
  from synthetic.park2_4.park2_4 import sub_park_1, sub_park_2, sub_park_3, sub_park_4
label_desc: Use image node_id 4 for calling a global function with example usage: syn_cnn_2_z_x(z, x) and returns: unknown