* starting insert prints
* working exec_script
* remove prints, fix exec_examples.py
* more cleanup of examples, better model printing
* upgrade netlify runtime
* extra docs deps
* few more small tweaks
* working on parsers
* starting parse tests
* proper tests for parse
* adding parse docs
* tweaks and history
* add test for datetime direct, fix tests
* tweak docs
* working on models allowing immutability, ref #38
* up complexity
* use noqa c901
* fixing fields with new processor
* allow_mutation config and tests
* uprev, history and docs
* fix typos
* add support for annotation only fields, fix#34
* adding tests with mypy
* adding docs for mypy usage
* adding mypy failure test
* adding alias tests
* tweak mypy tests