code: def rmsle(y_true, y_pred):
      from tensorflow.keras import backend as K
  
      first_log = K.log(K.clip(y_pred, K.epsilon(), None) + 1.0)
      second_log = K.log(K.clip(y_true, K.epsilon(), None) + 1.0)
      return K.sqrt(K.mean(K.square(first_log - second_log), axis=-1))
  
file_path: talos/talos/metrics/keras_metrics.py
label_desc: Use image node_id 7 for calling a global function with example usage: rmsle(y_true, y_pred) and returns: K