code: def _test_inf_time(
      self, predictor, fx_train_0, fx_test_0, g_td, y_train
  ):
      # Test infinite-time prediction
      pr_inf = predictor(jnp.inf, fx_train_0)
      self.assertAllClose(pr_inf, y_train, check_dtypes=False)
      self.assertAllClose(pr_inf, predictor(None, fx_train_0))
      self.assertAllClose(
          predictor(jnp.inf, fx_train_0, fx_test_0, g_td),
          predictor(None, fx_train_0, fx_test_0, g_td),
      )
  
imports: import math
  from absl.testing import absltest
  from jax import grad
  from jax import jit
  from jax import random
  from jax import vmap
  from jax import config
  from jax.example_libraries import optimizers
  from jax.flatten_util import ravel_pytree
  import jax.numpy
  import jax.tree_util
  import neural_tangents
  from neural_tangents import predict, stax
  from neural_tangents._src.predict import _is_on_cpu
  from tests import test_utils
label_desc: Use image node_id 2 for calling the PredictTest obj's underlying member method code with example usage: obj._test_inf_time(predictor, fx_train_0, fx_test_0, g_td, y_train) without return types