How to implement get_property in dbus_interface class

[lzx5990]

Seeing that set_property is now implemented in class dbus_interface, how should get_property be implemented

[mine260309]

This is a wanted feature and it's implemented in https://gerrit.openbmc.org/c/openbmc/sdbusplus/+/64536, but not got merged.

[lzx5990]

OK, thank you