code: def objective(x):
      x = np.asarray(x)
      return x[0] ** 2 + 4 * x[1] ** 2 - 32 * x[1] + 64
  
imports: import numpy
  import mystic.symbolic
  import mystic.solvers
  import mystic.math
label_desc: Use image node_id 1 for calling a global function with example usage: objective(x) and returns: unknown