Overlapping IP address - how to retrieve routedomain value related to the IP address using icontrol lib 12.x

self IP addresses-how do i retrieve the routedomain related to this IP address using iControl 12 lib.?

if i create IP AddressClass under dataGroup ,my f5 automatically adding %route domain some default value to the IPAddress duing save, but when i retrieve using LocalLBAddressClass(get_address_class) it not retreiving route domain, it does retreive only IP Address String ,

in order to retreive get_address_class_member_data_value for the IP address , f5 expects ipWithRoutedomain but how do i retrieve the routedomain related to this IP address using iControl 12.?