code: def testSparsifyValue(self):
      X = jnp.arange(5)
      X_BCOO = BCOO.fromdense(X)
  
      args = (X, X_BCOO, X_BCOO)
  
      # Independent index
      spenv = SparsifyEnv()
      spvalues = arrays_to_spvalues(spenv, args)
      self.assertEqual(len(spvalues), len(args))
      self.assertLen(spenv._buffers, 5)
      self.assertEqual(
          spvalues,
          (
              SparsifyValue(
                  X.shape,
                  0,
                  None,
                  indices_sorted=False,
                  unique_indices=False,
              ),
              SparsifyValue(
                  X.shape,
                  1,
                  2,
                  indices_sorted=True,
                  unique_indices=True,
              ),
              SparsifyValue(
                  X.shape,
                  3,
                  4,
                  indices_sorted=True,
                  unique_indices=True,
              ),
          ),
      )
  
      args_out = spvalues_to_arrays(spenv, spvalues)
      self.assertEqual(len(args_out), len(args))
      self.assertArraysEqual(args[0], args_out[0])
      self.assertBcooIdentical(args[1], args_out[1])
      self.assertBcooIdentical(args[2], args_out[2])
  
      # Shared index
      spvalues = (
          SparsifyValue(X.shape, 0, None),
          SparsifyValue(X.shape, 1, 2),
          SparsifyValue(X.shape, 3, 2),
      )
      spenv = SparsifyEnv([X, X_BCOO.data, X_BCOO.indices, X_BCOO.data])
  
      args_out = spvalues_to_arrays(spenv, spvalues)
      self.assertEqual(len(args_out), len(args))
      self.assertArraysEqual(args[0], args_out[0])
      self.assertBcooIdentical(args[1], args_out[1])
      self.assertBcooIdentical(args[2], args_out[2])
  
imports: from functools import partial
  import math
  import operator
  from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  import jax
  from jax import config, jit, lax
  import jax.numpy
  import jax._src.test_util
  from jax.experimental.sparse import BCOO, BCSR, sparsify, todense, SparseTracer
  from jax.experimental.sparse.transform import arrays_to_spvalues, spvalues_to_arrays, sparsify_raw, SparsifyValue, SparsifyEnv
  from jax.experimental.sparse.util import CuSparseEfficiencyWarning
  from jax.experimental.sparse import test_util
label_desc: Use image node_id 5 for calling the SparsifyTest obj's underlying member method code with example usage: obj.testSparsifyValue() without return types