ExperimentalOptional Readonly ExperimentalcoordinateOptional Readonly ExperimentalcrsOptional Readonly ExperimentalcrsDisambiguates a serialized CRS value; invalid without crs.
Optional Readonly ExperimentaldimensionsOptional Readonly ExperimentaledgesOptional Readonly ExperimentalfieldReadonly ExperimentalkindReadonly Experimentalvalues
Both official layouts are supported; separated is the GeoArrow-recommended default.