Issue with current documentation:

In NumPy, there are several functions that allow even rounding to a given number of decimals: np.around, np.round, np.round_.
The function np.round_ is a disrecommended backwards-compatibility alias of the first two.

Idea or request for content:

As per @charris recommendation #22615 (comment), I propose deprecating np.round_ to avoid further user confusion.

Refer to #22527 for more context.