code: def test_custom_linear_solve_pytree_with_aux(self):
      # Check that lax.custom_linear_solve handles
      # pytree inputs + has_aux=True
      # https://github.com/google/jax/pull/13093
  
      aux_orig = {"a": 1, "b": 2}
      b = {"c": jnp.ones(2), "d": jnp.ones(3)}
  
      def solve_with_aux(matvec, b):
          return b, aux_orig
  
      sol, aux = lax.custom_linear_solve(
          lambda x: x, b, solve_with_aux, solve_with_aux, has_aux=True
      )
  
      assert len(aux.keys()) == 2
      assert "a" in aux
      assert "b" in aux
      self.assertAllClose(aux["a"], aux_orig["a"], check_dtypes=False)
      self.assertAllClose(aux["b"], aux_orig["b"], check_dtypes=False)
  
imports: from functools import partial
  import re
  import unittest
  from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  import jax
  from jax import lax
  from jax.ad_checkpoint import checkpoint
  from jax._src import test_util
  from jax import tree_util
  import jax.numpy
  import jax.scipy
  from jax import config
label_desc: Use image node_id 10 for calling the CustomLinearSolveTest obj's underlying member method code with example usage: obj.test_custom_linear_solve_pytree_with_aux() and returns: b,  aux_orig