code: def _get_l2_clip_fn():
      def l2_clip_fn(record_as_list, clip_value):
          clipped_record, _ = tf.clip_by_global_norm(
              record_as_list, clip_value
          )
          return clipped_record
  
      return l2_clip_fn
  
imports: import unittest
  from absl.testing import parameterized
  import tensorflow
  from tensorflow_privacy.privacy.dp_query import restart_query
  from tensorflow_privacy.privacy.dp_query import tree_aggregation_query
label_desc: Use image node_id 1 for calling a global function with example usage: _get_l2_clip_fn() and returns: l2_clip_fn, clipped_record