The following classes and functions in pywikibot/__init__.py are missing from the __all__ variable in the pywikibot package.

Functions:

• Site (T122563)
• setAction
• showDiff
• stopme
• async_manager
• async_request

Classes:

• Timestamp
• Coordinate
• WbTime
• WbQuantity

Most of these are not exposed as package level items in compat, so they do not need to be exposed as package level items in core, but they do need to be exposed in a module (i.e. they could be moved out of __init__ to become exposed.
And some may be intentionally hidden members; e.g. async_manager and stopme do not need to be exposed at all.