code: def dummy_ground_metric(x, y):
      return np.float32(not x == y)
  
imports: from __future__ import print_function
  import locale
  import numpy
  import numba
  from pynndescent.utils import norm, tau_rand
  from pynndescent.distances import kantorovich, jensen_shannon_divergence, symmetric_kl_divergence
label_desc: Use image node_id 38 for calling a global function with example usage: dummy_ground_metric(x, y) and returns: np