Request support for set value hook

[StringKe]

with open(self._config_file, "r", encoding="utf8") as fp:
     data = yaml.load(fp, Loader=yaml.FullLoader)
config = DotMap(data)

I want to be able to re-save the changes to yaml when I change the config

[FelixSchwarz]

Could you explain a bit more in detail what you are looking for? I am not sure I understand what feature you are missing. Maybe just write a small example how the code should work?