@startuml
class ServiceData {
    - <<const>> GetAllServicesUrl : string = "getAllByBranch"
    - <<const>> ServicesUrl : string = "Service"
    + {static} <<async>> GetServices() : Task<List<Service>?>
    + {static} <<async>> AddService(service:Service) : Task<Service?>
    + {static} <<async>> UpdateService(service:Service) : Task<Service?>
    + {static} <<async>> DeleteService(id:string) : Task<bool>
}
@enduml
