code: def _all_funcs():
      """Generates all transfer functions."""
      return (
          _host_to_device_funcs()
          + _device_to_device_funcs()
          + _device_to_host_funcs()
      )
  
imports: import contextlib
  import pickle
  from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  import jax
  import jax._src.test_util
  import jax.numpy
  from jax import config
label_desc: Use image node_id 4 for calling a global function with example usage: _all_funcs() and returns: unknown