Add a check for describe property exists
Add a check for describe property exists

hhkaos/developer-support,hhkaos/developer-support,Esri/developer-support,hhkaos/developer-support,Esri/developer-support,Esri/developer-support,Esri/developer-support,hhkaos/developer-support,hhkaos/developer-support,Esri/developer-support,Esri/developer-support,hhkaos/developer-support,Esri/developer-support,hhkaos/developer-support,hhkaos/developer-support,Esri/developer-support,Esri/developer-support,hhkaos/developer-support,Esri/developer-support,Esri/developer-support,Esri/developer-support,hhkaos/developer-support,Esri/developer-support,hhkaos/developer-support