• DEBUG : MsgLogger , VLogger
• DEBUG_1 : VLogger , MsgLogger
• DEBUG_2 : MsgLogger , VLogger
• DEBUG_3 : VLogger , MsgLogger
• ERROR : MsgLogger , VLogger
• INFO : MsgLogger , VLogger
• None : cvac::ServiceManager
• Running : cvac::ServiceManager
• SILENT : MsgLogger , VLogger
• Stopped : cvac::ServiceManager
• Stopping : cvac::ServiceManager
• WARN : MsgLogger , VLogger