code: def test_change_basis_real_to_complex_device(self) -> None:
      # Test for device placement (CPU to CUDA)
      j = 1
      device = torch.device(
          "cuda" if torch.cuda.is_available() else "cpu"
      )
      Q = equivariance_utils.change_basis_real_to_complex(
          j, device=device
      )
      self.assertEqual(Q.device, device)
  
file_path: deepchem/deepchem/utils/test/test_equivariance_utils.py
imports: import unittest
label_desc: Use image node_id 7 for calling the TestEquivarianceUtils obj's underlying member method code with example usage: obj.test_change_basis_real_to_complex_device() without return types