def METHOD_NAME(self) -> None:
    """Sim(2) to perform p_b = bSa * p_a"""
    bRa = Rot2()
    bta = np.array([1, 2])
    bsa = 3.0
    bSa = Similarity2(R=bRa, t=bta, s=bsa)
    self.assertIsInstance(bSa, Similarity2)
    np.testing.assert_allclose(bSa.rotation().matrix(), bRa.matrix())
    np.testing.assert_allclose(bSa.translation(), bta)
    np.testing.assert_allclose(bSa.scale(), bsa)