code: def _get_no_noise_fn(specs):
      shape = tf.nest.map_structure(lambda spec: spec.shape, specs)
  
      def no_noise_fn():
          return tf.nest.map_structure(tf.zeros, shape)
  
      return no_noise_fn
  
imports: from absl.testing import parameterized
  import numpy
  import tensorflow
  from tensorflow_privacy.privacy.dp_query import test_utils
  from tensorflow_privacy.privacy.dp_query import tree_aggregation
  from tensorflow_privacy.privacy.dp_query import tree_aggregation_query
label_desc: Use image node_id 3 for calling a global function with example usage: _get_no_noise_fn(specs) and returns: no_noise_fn, tf