Where to use data model in rest services?

Am using this Documentaion.In this as shown in document i have to create data model .but when i download the rest services in project then already data model are designed .so where to add this new entity?am new in mendix so please help me..
1 answers

The model that exists is for the supporting features of the rest module. The datamodel you need to create is for consuming/publishing the rest service.