code: def mean_l1_loss(g1, g2):
      with tf.name_scope("mean_l1_loss"):
          return tf.reduce_mean(tf.abs(g1 - g2))
  
file_path: lucid/lucid/optvis/style.py
imports: import tensorflow
label_desc: Use image node_id 2 for calling a global function with example usage: mean_l1_loss(g1, g2) and returns: tf