code: def testSparseDynamicSlice(self):
      M = jnp.arange(24).reshape(2, 3, 4)
      Msp = BCOO.fromdense(M)
  
      @self.sparsify
      def func(M):
          return lax.dynamic_slice(M, (0, 1, 2), (1, 1, 3))
  
      expected = M[:1, 1:2, 1:4]
      self.assertArraysEqual(func(M), expected)
      self.assertArraysEqual(func(Msp).todense(), expected)
      self.assertArraysEqual(jit(func)(M), expected)
      self.assertArraysEqual(jit(func)(Msp).todense(), expected)
  
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 32 for calling the SparsifyTest obj's underlying member method code with example usage: obj.testSparseDynamicSlice() and returns: lax