API Reference > imodeljs-common > Geometry > GeometryStreamHeaderProps GeometryStreamHeaderProps Interface An entry in a GeometryStreamProps containing GeometryStreamFlags that apply to the geometry stream as a whole. If this entry exists in the GeometryStreamProps array, it will always be the first entry. Properties Name Type Description flags GeometryStreamFlags The flags applied to the geometry stream. Defined in core/common/src/geometry/GeometryStream.ts Line 152 Last Updated: 11 June, 2024