QVariantMap would work too; I presume this is why the annotation is needed,
rather than QtDBus automatically figuring out which type to use.
This even checks that QHash<QString,QVariant> works in the annotation,
although QVariantHash would be simpler to write, obviously.
Change-Id: I7a339ca90f10e5ec97dcea1bb4dbba3c515e6b23
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Kevin Ottens <kevin.ottens@kdab.com>