Use TypedDict for models? #573

Is your feature request related to a problem? Please describe.
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Describe the solution you'd like
TypedDict might be a good option for models:

• Drop dependency on attrs
• Great editor support:
  
• No need for to_dict or from_dict on models
• Can use python keywords as keys class etc

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context

• https://www.python.org/dev/peps/pep-0526/
• https://www.python.org/dev/peps/pep-0655/