private static BacNetObject createEventEnrollment() {
        return b("Event Enrollment",
            p("Object_Identifier", "BACnetObjectIdentifier", c(R)),
            p("Object_Name", "CharacterString", c(R)),
            p("Object_Type", "BACnetObjectType", c(R)),
            p("Description", "CharacterString", c(O)),
            p("Event_Type", "BACnetEventType", c(R)),
            p("Notify_Type", "BACnetNotifyType", c(R)),
            p("Event_Parameters", "BACnetEventParameter", c(R)),
            p("Object_Property_Reference", "BACnetDeviceObjectPropertyReference", c(R)),
            p("Event_State", "BACnetEventState", c(R)),
            p("Event_Enable", "BACnetEventTransitionBits", c(R)),
            p("Acked_Transitions", "BACnetEventTransitionBits", c(R)),
            p("Notification_Class", "Unsigned", c(R)),
            p("Event_Time_Stamps", "BACnetARRAY[3] of BACnetTimeStamp", c(R)),
            p("Event_Message_Texts", "BACnetARRAY[3] of CharacterString", c(O)),
            p("Event_Message_Texts_Config", "BACnetARRAY[3] of CharacterString", c(O)),
            p("Event_Detection_Enable", "BOOLEAN", c(R)),
            p("Event_Algorithm_Inhibit_Ref", "BACnetObjectPropertyReference", c(O)),
            p("Event_Algorithm_Inhibit", "BOOLEAN", c(O, 2)),
            p("Time_Delay_Normal", "Unsigned", c(R)),
            p("Status_Flags", "BACnetStatusFlags", c(R)),
            p("Reliability", "BACnetReliability", c(R)),
            p("Fault_Type", "BACnetFaultType", c(O, 3)),
            p("Fault_Parameters", "BACnetFaultParameter", c(O, 3)),
            p("Reliability_Evaluation_Inhibit", "BOOLEAN", c(R)),
            p("Property_List", "BACnetARRAY[N] of BACnetPropertyIdentifier", c(R)),
            p("Tags", "BACnetARRAY[N] of BACnetNameValue", c(O)),
            p("Profile_Location", "CharacterString", c(O)),
            p("Profile_Name", "CharacterString", c(O))
        );
    }
a map which maps property to type variants
protocols/bacnetip/src/test/java/org/apache/plc4x/protocol/bacnetip/BACnetObjectsDefinitions.java