code: def test_trim_ndim(self, dtype):
      for xp in (numpy, cupy):
          a = testing.shaped_arange((2, 3), xp, dtype=dtype)
          with pytest.raises(ValueError):
              xp.trim_zeros(a, trim=self.trim)
  
imports: import unittest
  import pytest
  import numpy
  import cupy
  from cupy import testing
label_desc: Use image node_id 7 for calling the TestTrim_zeros obj's underlying member method code with example usage: obj.test_trim_ndim(dtype) without return types