This fixes the inspect.signature errors for 50+ methods of the numpy scalar types. To avoid code duplication, I added a cute little helper function that takes care of both the method docstrings of ndarray and generic at the same time, as well as the __text_signature__.

To make things a bit easer for myself, I simplified the ndarray-referencing docstrings of the generic methods a bit, so that they fit on one line. But it could easily be expanded now, or even automatically kept in sync with the ndarray method docs.

This also adds docstrings to generic.to_device() and generic.tobytes(), because they were completely missing.

Anyway, to make a long story even longer; the following generic and longlong methods will now no longer cause inspect.signature to raise a ValueError (puns intended), including:

• np.generic.__array_namespace__
• np.generic.__copy__
• np.generic.__deepcopy__
• np.generic.all
• np.generic.any
• np.generic.argmax
• np.generic.argmin
• np.generic.argsort
• np.generic.astype
• np.generic.byteswap
• np.generic.choose
• np.generic.clip
• np.generic.compress
• np.generic.conj
• np.generic.conjugate
• np.generic.copy
• np.generic.cumprod
• np.generic.cumsum
• np.generic.diagonal
• np.generic.dump
• np.generic.dumps
• np.generic.fill
• np.generic.flatten
• np.generic.getfield
• np.generic.item
• np.generic.max
• np.generic.mean
• np.generic.min
• np.generic.nonzero
• np.generic.prod
• np.generic.put
• np.generic.ravel
• np.generic.repeat
• np.generic.reshape
• np.generic.resize
• np.generic.round
• np.generic.searchsorted
• np.generic.setfield
• np.generic.setflags
• np.generic.sort
• np.generic.squeeze
• np.generic.std
• np.generic.sum
• np.generic.swapaxes
• np.generic.take
• np.generic.to_device
• np.generic.tobytes
• np.generic.tofile
• np.generic.tolist
• np.generic.trace
• np.generic.transpose
• np.generic.var
• np.generic.view
• np.ulonglong.bit_count
• np.longlong.bit_count

Related to #30104, #30114, #30121, #30124, #30126, #30137, #30138, #30140, #30143, #30146, #30147, #30155, and #30164, #30169