forked from loafle/openapi-generator-original
* add option to return None instead of raising exception when accessing unset attribute * update python samples * reimplement getattr using getitem or get depending on attrNoneIfUnset * move getattr and setattr to respective templates * update docstrings, def get/setattr methods to have docstrings in them, use __dict__ to avoid recursion issues * revert required_properties change * add manual tests for .get method