code: def testSparseConcatenateBCOO(self, shapes, func, n_batch):
      f = self.sparsify(getattr(jnp, func))
      rng = jtu.rand_some_zero(self.rng())
      arrs = [rng(shape, "int32") for shape in shapes]
      sparrs = [BCOO.fromdense(arr, n_batch=n_batch) for arr in arrs]
      self.assertArraysEqual(f(arrs), f(sparrs).todense())
  
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 19 for calling the SparsifyTest obj's underlying member method code with example usage: obj.testSparseConcatenateBCOO(shapes, func, n_batch) without return types