digital_twin car {
  attributes {
    ...}
    
  features ...
  
  
end


def_digital_twins Stib do 

 @host "http://api.com"
 
 1. PArse json 
 2. filter out relevant data (e.g., data per bus identifier)
 3. update local digital twin representation
 
 @twins [car, bus, ..]
 
 @transformatoin api->car  "..."
 @transformatoin api->bus  "..."
 

end