- update to 0.9.0:
* fix the generation of Subclass from type annotations PR #193
* move getstate and setstate implementation to C and allow to
customize the condition under which a member value is
pickled. PR #182
* Customization is used to only pickle member value whose
state can be restored (for example Constant is not
pickled). Whether a member is pickled can be customized
using a method prefixed with ``_getstate_`` on an Atom
subclass.
* use the Typed member when a type annotation resolve to a
single type whose metaclass does not implement a custom
``__instancecheck__`` PR #185
* generate Tuple member for tuple[] annotations.
The content of the tuple is typed check only if it is a
1-tuple or variable-length tuple. PR #184
* fix the resolution order of members in the presence of
multiple inheritance with a common base class PR
* Due to the above changes, adding a member after the class
definition requires more work than before. As a
consequence a new helper function ``add_member`` has
been added.