code: def testInfeed(self):
      @jax.jit
      def f(x):
          token = lax.create_token(x)
          (y,), token = lax.infeed(
              token, shape=(core.ShapedArray((3, 4), jnp.float32),)
          )
          (z,), _ = lax.infeed(
              token, shape=(core.ShapedArray((3, 1, 1), jnp.float32),)
          )
          return x + y + z
  
      x = np.float32(1.5)
      y = np.reshape(
          np.arange(12, dtype=np.float32), (3, 4)
      )  # self.rng().randn(3, 4).astype(np.float32)
      z = self.rng().randn(3, 1, 1).astype(np.float32)
      device = jax.local_devices()[0]
      device.transfer_to_infeed((y,))
      device.transfer_to_infeed((z,))
      self.assertAllClose(f(x), x + y + z)
  
file_path: jax/tests/infeed_test.py
imports: import threading
  from unittest import SkipTest
  from absl.testing import absltest
  import jax
  from jax import lax, numpy
  from jax import config
  from jax.experimental import host_callback
  from jax._src import core
  from jax._src import xla_bridge
  from jax._src.lib import xla_client
  import jax._src.test_util
  import numpy
label_desc: Use image node_id 2 for calling the InfeedTest obj's underlying member method code with example usage: obj.testInfeed() and returns: unknown