code: def membership_test(model, pois_x, pois_y):
      """Membership inference - detect poisoning."""
      del pois_y
      return model.predict(pois_x)
  
file_path: privacy/research/audit_2020/mean_audit.py
imports: import numpy
  import tensorflow.compat.v1
  from tensorflow_privacy.privacy.analysis.rdp_accountant import compute_rdp
  from tensorflow_privacy.privacy.analysis.rdp_accountant import get_privacy_spent
  from tensorflow_privacy.privacy.optimizers import dp_optimizer_vectorized
  from absl import app
  from absl import flags
  import audit
label_desc: Use image node_id 4 for calling a global function with example usage: membership_test(model, pois_x, pois_y) and returns: model