def METHOD_NAME() -> None:
    l1 = o3.Linear("5x0e", "5x0e")
    l2 = o3.Linear("5x0e", "5x0e + 3x0o")
    with torch.no_grad():
        l1.weight[:] = l2.weight
    x = torch.randn(3, 5)
    out1 = l1(x)
    out2 = l2(x)
    assert out1.shape == (3, 5)
    assert out2.shape == (3, 8)
    assert torch.allclose(out1, out2[:, :5])
    assert torch.all(out2[:, 5:] == 0)