Adding a prominent method like this to `np.ndarray` is something that we will probably not take up ourselves unless it is adopted by the Array API standard. It's possible that you might get some interest there since the Array API deliberately strips out the number of methods that we already have (e.g. `.mean()`, `.sum()`, etc.) in favor of functions. A general way to add some kind of fluency cheaply in an Array API-agnostic fashion might be helpful to people trying to make their numpy-only code that uses our current set of methods in this way a bit easier. But you'll have to make the proposal to them, I think, to get started.