clldutils 4.0 will no longer depend on `attrs`, thus there likely won't be a `clldutils.apilib.DataObject` anymore. https://github.com/concepticon/pyconcepticon/blob/4b23ddcc7abd3b0e7382a1c23babecfd2dc1786b/src/pyconcepticon/models.py#L9
clldutils 4.0 will no longer depend on
attrs, thus there likely won't be aclldutils.apilib.DataObjectanymore.pyconcepticon/src/pyconcepticon/models.py
Line 9 in 4b23ddc