>Can you get rid of the magic *?
>This is not necessary here.

What I mean is that if you have a `get_classification_type` function,
you can easily compare the format of `y_pred` and `y_true` without 
using the magic `*`:

````python
>>> ind = np.array([[0, 1], [1, 0]])
>>> seq = [[0], [0, 2]]
>>>get_classification_type(ind)
"multilabel-indicator-matrix"
>>> get_classification_type(seq)
"multilabel-sequence-of-sequence"
>>> get_classification_type(ind) ==  get_classification_type(seq)
False
```