code: def fix_dtype(pytree):
      def fix(x):
          if x.dtype == np.dtype("V2"):
              x.dtype = jnp.bfloat16
          return jnp.asarray(x)
  
      return jax.tree_map(fix, pytree)
  
imports: import functools
  import io
  import json
  import time
  import jax
  import jax.numpy
  import numpy
  import multiprocessing
  import ray
  from smart_open import open
  from mesh_transformer.util import head_print
label_desc: Use image node_id 1 for calling a global function with example usage: fix_dtype(pytree) and returns: jax, jnp