def get(self, category, key, default=None): return self._metadata.get(category, {}).get(key, default)
It sounds like you’re asking for a piece related to — likely in the context of TouchDesigner (where .dat is a text or table DAT operator) or a broader data management / pipeline concept. global metadata dat
def set(self, category, key, value, validate=None): if category not in self._metadata: self._metadata[category] = {} if validate and not validate(value): raise ValueError(f"Invalid value for key: value") self._metadata[category][key] = value def get(self, category, key, default=None): return self