code: def create_tpu_strategy():
      """Initializes a TPU environment."""
      # Done to avoid transferring data between CPUs and TPUs.
      tf_compat.config.set_soft_device_placement(False)
      resolver = (
          tf_compat.distribute.cluster_resolver.TPUClusterResolver(
              tpu=""
          )
      )
      tf_compat.config.experimental_connect_to_cluster(resolver)
      tf_compat.tpu.experimental.initialize_tpu_system(resolver)
      return tf_compat.distribute.TPUStrategy(resolver)
  
imports: from collections.abc import Callable, MutableSequence, Sequence
  from typing import Optional
  import numpy
  import tensorflow
  import tensorflow.compat.v2
  from tensorflow_privacy.privacy.fast_gradient_clipping import clip_grads
  from tensorflow_privacy.privacy.fast_gradient_clipping import layer_registry
  from tensorflow_privacy.privacy.fast_gradient_clipping import type_aliases
label_desc: Use image node_id 1 for calling a global function with example usage: create_tpu_strategy() and returns: tf_compat