def METHOD_NAME(self) -> None:
    assert utils._dim_from_tblock_size(1) == 1
    # This isn't possible until we fully move to pytest.
    # with pytest.raises(
    #     RuntimeError,
    #     match="The number of elements (2) isn't possible for a matrix triangle"
    # ):
    #     assert utils._dim_from_tblock_size(2)
    assert utils._dim_from_tblock_size(3) == 2
    assert utils._dim_from_tblock_size(6) == 3
    assert utils._dim_from_tblock_size(10) == 4