code: def test_invalid_dtype(self):
      # Note: SciPy 1.12+ accepts integer.
      with pytest.raises(NotImplementedError):
          sparse.random(3, 4, dtype="i")
  
imports: import functools
  import re
  from unittest import mock
  import numpy
  import pytest
  import cupy
  from cupy import testing
  from cupy.cuda import runtime
  from cupyx.scipy import sparse
  from cupyx.scipy.sparse import _construct
label_desc: Use image node_id 3 for calling the TestRandomInvalidArgument obj's underlying member method code with example usage: obj.test_invalid_dtype() without return types