def METHOD_NAME():
    Bell_pair_block_state = tc.templates.blocks.state_centric(
        tc.templates.blocks.Bell_pair_block
    )
    s = Bell_pair_block_state(np.array([1.0, 0, 0, 0]))
    np.testing.assert_allclose(
        s, np.array([0.0, 0.70710677 + 0.0j, -0.70710677 + 0.0j, 0]), atol=1e-5
    )