4.5

What's Changed

• Create a tool for stubs in cstruct v4 by @Miauwkeru in #72
• Fix typedefs for internal types by @Schamper in #118
• Fix unhashable code objects of generated classes by @Schamper in #120
• Fix dynamic size errors for MetaType by @Schamper in #121

Full Changelog: 4.4...4.5