code: def test_concatenate_dtype_invalid_out(self):
      for xp in (numpy, cupy):
          a = testing.shaped_arange((3, 4), xp, xp.float64)
          b = testing.shaped_arange((3, 4), xp, xp.float64)
          out = xp.zeros((6, 4), dtype=xp.int64)
          with pytest.raises(TypeError):
              xp.concatenate((a, b), out=out, dtype=xp.int64)
  
imports: import numpy
  import pytest
  import cupy
  from cupy import testing
  from cupy import cuda
label_desc: Use image node_id 27 for calling the TestJoin obj's underlying member method code with example usage: obj.test_concatenate_dtype_invalid_out() without return types