code: def test_givens_decomposition_exceptions(unitary_matrix, msg_match):
      """Test that givens_decomposition throws an exception if the parameters have illegal shapes."""
  
      with pytest.raises(ValueError, match=msg_match):
          givens_decomposition(unitary_matrix)
  
imports: import pytest
  from scipy.stats import unitary_group
  from pennylane import numpy
  from pennylane.qchem.givens_decomposition import _givens_matrix, givens_decomposition
label_desc: Use image node_id 4 for calling a global function with example usage: test_givens_decomposition_exceptions(unitary_matrix, msg_match) without return types