code: def compute_kkt_optimality(g, on_bound):
      """Compute the maximum violation of KKT conditions."""
      g_kkt = g * on_bound
      free_set = on_bound == 0
      g_kkt[free_set] = np.abs(g[free_set])
      return np.max(g_kkt)
  
imports: from __future__ import division, print_function, absolute_import
  import numpy
  from numpy.linalg import norm, lstsq
  from scipy.optimize import OptimizeResult
  from .common import print_header_linear, print_iteration_linear
label_desc: Use image node_id 1 for calling a global function with example usage: compute_kkt_optimality(g, on_bound) and returns: np