How to use the tigramite.data_processing._check_stability function in tigramite

def test_stability_parameters(unstable_parameter_sets):
    """
    Test that the correct exceptions are raised for unstable lagged connectivity 
    matricies
    """
    # Unpack the parameter set fixture
    stab_matrix, unst_matrix, message = unstable_parameter_sets
    error_message = message + " should trigger an assertion error for "+\
                              "_var_network graph."
    # Test the good parameter set
    try:
        pp._check_stability(stab_matrix)
    # Ensure no exception is raised
    except:
        pytest.fail("Stable matrix set triggers exception incorrectly!")
    # Ensure an exception is raised for a bad parameter set
    with pytest.raises(AssertionError):
        pp._check_stability(unst_matrix)
        pytest.fail(error_message)

Test that the correct exceptions are raised for unstable lagged connectivity 
    matricies
    """
    # Unpack the parameter set fixture
    stab_matrix, unst_matrix, message = unstable_parameter_sets
    error_message = message + " should trigger an assertion error for "+\
                              "_var_network graph."
    # Test the good parameter set
    try:
        pp._check_stability(stab_matrix)
    # Ensure no exception is raised
    except:
        pytest.fail("Stable matrix set triggers exception incorrectly!")
    # Ensure an exception is raised for a bad parameter set
    with pytest.raises(AssertionError):
        pp._check_stability(unst_matrix)
        pytest.fail(error_message)