code: def mape(y_true, y_pred):
      from tensorflow.keras import backend as K
  
      diff = K.abs(
          (y_true - y_pred) / K.clip(K.abs(y_true), K.epsilon(), None)
      )
      return 100.0 * K.mean(diff, axis=-1)
  
file_path: talos/talos/metrics/keras_metrics.py
label_desc: Use image node_id 5 for calling a global function with example usage: mape(y_true, y_pred) and returns: unknown