new_lightshelf =subsurfaces[11].addDaylightingDeviceShelf()
<openstudio::model::optionaldaylightingdeviceshelf:0x0001c817a91b78>
new_lightshelf.empty? false aa=new_lightshelf.get OS:DaylightingDevice:Shelf, {d3e8c95e-9f08-4a58-acf4-c2b79d7df8c4}, !- Handle Daylighting Device Shelf 1, !- Name {72f98f0b-6b8a-4ba6-920d-83994f4287e7}; !- Window Name aa.class OpenStudio::Model::DaylightingDeviceShelf aa.name Daylighting Device Shelf 1