code: def testKernelRegressionGram(self):
      n, d = 100, 20
      xs = self.rng.normal(size=(n, d))
      kernel = lambda x, y: jnp.dot(x, y)
      np.testing.assert_allclose(
          kernel_lsq.gram(kernel, xs), jnp.dot(xs, xs.T), atol=1e-5
      )
  
file_path: jax/examples/examples_test.py
imports: import os
  import sys
  import zlib
  from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  from jax import lax
  from jax import random
  import jax.numpy
  from examples import kernel_lsq
  from jax import config
label_desc: Use image node_id 2 for calling the ExamplesTest obj's underlying member method code with example usage: obj.testKernelRegressionGram() without return types