GeoObjectCollection constructor
      
      GeoObjectCollection(
    
    
- BoundingBox? boundingBox,
- TypeDictionaryBase<BaseMetadata> metadataContainer,
- List<GeoObjectCollectionItem> children
Implementation
factory GeoObjectCollection(
        mapkit_geometry_geometry.BoundingBox? boundingBox,
        type_dictionary.TypeDictionaryBase<mapkit_base_metadata.BaseMetadata>
            metadataContainer,
        core.List<GeoObjectCollectionItem> children) =>
    GeoObjectCollectionImpl(boundingBox, metadataContainer, children);