code: def test_gmres_against_scipy(
      self, shape, dtype, preconditioner, solve_method
  ):
      if not config.enable_x64.value:
          raise unittest.SkipTest("requires x64 mode")
  
      rng = jtu.rand_default(self.rng())
      A = rng(shape, dtype)
      b = rng(shape[:1], dtype)
      M = self._fetch_preconditioner(preconditioner, A, rng=rng)
  
      def args_maker():
          return A, b
  
      self._CheckAgainstNumpy(
          partial(scipy_gmres, M=M, restart=1, maxiter=1),
          partial(
              lax_gmres,
              M=M,
              restart=1,
              maxiter=1,
              solve_method=solve_method,
          ),
          args_maker,
          tol=1e-10,
      )
  
      self._CheckAgainstNumpy(
          partial(scipy_gmres, M=M, restart=1, maxiter=2),
          partial(
              lax_gmres,
              M=M,
              restart=1,
              maxiter=2,
              solve_method=solve_method,
          ),
          args_maker,
          tol=1e-10,
      )
  
      self._CheckAgainstNumpy(
          partial(scipy_gmres, M=M, restart=2, maxiter=1),
          partial(
              lax_gmres,
              M=M,
              restart=2,
              maxiter=1,
              solve_method=solve_method,
          ),
          args_maker,
          tol=1e-9,
      )
  
      self._CheckAgainstNumpy(
          np.linalg.solve,
          partial(lax_gmres, M=M, atol=1e-6, solve_method=solve_method),
          args_maker,
          tol=1e-8,
      )
  
imports: from functools import partial
  import unittest
  from absl.testing import absltest
  import numpy
  import scipy.sparse.linalg
  import jax
  import jax.numpy
  import jax.scipy.sparse.linalg
  from jax import jit
  from jax import lax
  from jax.tree_util import register_pytree_node_class
  import jax._src.scipy.sparse.linalg
  from jax._src import config
  from jax._src import dtypes
  from jax._src import test_util
label_desc: Use image node_id 16 for calling the LaxBackedScipyTests obj's underlying member method code with example usage: obj.test_gmres_against_scipy(shape, dtype, preconditioner, solve_method) and returns: A,  b