v2.0.0-beta2

• Add support for deprecated message and fields #126
• Add support for recursive messages #130
• Add support for bool(Message) #142
• Improve support for Python 3.9 #140 #173
• Improve keyword sanitisation for generated code #137
• Fix missing serialized_on_wire when message contains only lists #81
• Fix circular dependencies #100
• Fix to_dict enum fields when numbering is not consecutive #102
• Fix argument generation for stub methods when using import with proto definition #103
• Fix missing async/await keywords when casing #104
• Fix mutable default arguments in generated code #105
• Fix serialisation of default values in oneofs when calling to_dict() or to_json() #110
• Fix static type checking for grpclib client #124
• Fix python3.6 compatibility issue with dataclasses #124
• Fix handling of trailer-only responses #127
• Refactor plugin.py to use modular dataclasses in tree-like structure to represent parsed data #121
• Refactor template compilation logic #136
• Replace use of platform provided protoc with development dependency on grpcio-tools #107
• Switch to using poe from make to manage project development tasks #118
• Improve CI platform coverage #128