code: def hartmann3_2_mf(z, x):
      """Hartmann function in 3D."""
      f0 = z[0][0] / 999.0
      f1 = z[0][1] / 999.0
      f2 = (z[1] + 1) / 2.0
      f3 = z[2]
      f = np.array([f0, f1, f2, f3])
      delta = np.array([0.1] * 4)
      alpha = np.array([1.0, 1.2, 3.0, 3.2])
      alpha_z = alpha - delta * (1 - f)
      return hartmann3_2_alpha(x, alpha_z)
  
imports: import numpy
label_desc: Use image node_id 1 for calling a global function with example usage: hartmann3_2_mf(z, x) and returns: hartmann3_2_alpha