def _loads(self, contents: Mapping[str, Mapping[str, float]]) -> None:
self._translation = Vector3D.loads(contents["translation"])
rotation_contents = contents["rotation"]
self._rotation = Quaternion(
rotation_contents["w"],
rotation_contents["x"],
rotation_contents["y"],
rotation_contents["z"],
)
def _loads(self, contents: Mapping[str, Mapping[str, float]]) -> None:
self._size = Vector3D.loads(contents["size"])
self._transform = Transform3D.loads(contents)