code: def test_identity_identity(self):
      init = initializers.Identity()
      shape = (42, 20)
      generated = init(shape, jnp.float32)
      self.assertEqual(generated.shape, shape)
      self.assertEqual(generated.dtype, jnp.float32)
  
      key = jax.random.PRNGKey(42)
      some_matrix = jax.random.normal(key, (62, 42), jnp.float32)
      np.testing.assert_allclose(
          some_matrix @ generated, some_matrix[:, :20], rtol=1e-2
      )
  
imports: import itertools
  from absl.testing import absltest
  from absl.testing import parameterized
  from haiku._src import initializers
  from haiku._src import test_utils
  import jax
  from jax import config
  import jax.numpy
  import numpy
label_desc: Use image node_id 6 for calling the InitializersTest obj's underlying member method code with example usage: obj.test_identity_identity() without return types