code: def default_score_fn(t):
      return tf.reduce_sum(t, axis=list(range(len(t.shape)))[1:])
  
file_path: lucid/lucid/scratch/rl_util/attribution.py
imports: import numpy
  import tensorflow
  import lucid.optvis.render
  import itertools
  from lucid.misc.gradient_override import gradient_override_map
label_desc: Use image node_id 3 for calling a global function with example usage: default_score_fn(t) and returns: tf