def METHOD_NAME(Grid):
    grid = Grid((4, 5))
    expected, _ = get_core_node_matrix(
        grid, 1.0, coef_at_link=np.full(grid.number_of_links, 11.0)
    )
    actual, _ = get_core_node_matrix(grid, 1.0, coef_at_link=11.0)
    assert_array_equal(expected.toarray(), actual.toarray())