code: def testWeakTypes(self):
      # Regression test for https://github.com/google/jax/issues/8267
      M = jnp.arange(12, dtype="int32").reshape(3, 4)
      Msp = BCOO.fromdense(M)
      self.assertArraysEqual(
          operator.mul(2, M),
          self.sparsify(operator.mul)(2, Msp).todense(),
          check_dtypes=True,
      )
  
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 33 for calling the SparsifyTest obj's underlying member method code with example usage: obj.testWeakTypes() without return types