code: def add_prefix_to_keys(
      result: Dict[str, Any], prefix: str
  ) -> Dict[str, Any]:
      """Adds a prefix to the keys of a dict, returning a new dict."""
      return {f"{prefix}_{key}": val for key, val in result.items()}
  
imports: import os
  from typing import Any, Dict, Iterable, Tuple, Optional
  from absl import logging
  from clu import checkpoint
  from clu import metric_writers
  from clu import metrics
  from clu import parameter_overview
  from clu import periodic_actions
  import flax
  import flax.core
  import flax.linen
  from flax.training import train_state
  import jax
  import jax.numpy
  import jraph
  import ml_collections
  import numpy
  import optax
  import sklearn.metrics
  import tensorflow
  import input_pipeline
  import models
label_desc: Use image node_id 5 for calling a global function with example usage: add_prefix_to_keys(result, prefix) and returns: unknown