code: def on_accelerator(x):
      """Puts ``x`` in (single) accelerator memory in JAX."""
      try:
          accelerator_devices = jax.devices("gpu")
      except RuntimeError:
          try:
              accelerator_devices = jax.devices("tpu")
          except RuntimeError:
              accelerator_devices = []
      if not accelerator_devices:
          return x
      if len(accelerator_devices) != 1:
          return x
      return jax.device_put(x, accelerator_devices[0])
  
imports: import jax
  import numpy
  from trax import fastmath
  from trax.fastmath import numpy
  from trax.layers import base
label_desc: Use image node_id 8 for calling a global function with example usage: on_accelerator(x) and returns: jax, x, x