Return all members of an object as (name, value) pairs sorted by name
without triggering dynamic lookup via the descriptor protocol,
__getattr__ or __getattribute__. Optionally, only return members that
satisfy a given predicate.
Note: this function may not be able to retrieve all members
that getmembers can fetch (like dynamically created attributes)
and may find members that getmembers can't (like descriptors
that raise AttributeError). It can also return descriptor objects
instead of instance members in some cases.