-# we require the base to be a struct
+# For now, we require the base to be a struct without variants
+# TODO: It would be possible to allow a union as a base, as long as all
+# permutations of QMP names exposed by base do not clash with any QMP
+# member names added by local variants.
{ 'enum': 'TestEnum',
'data': [ 'value1', 'value2' ] }
{ 'struct': 'TestTypeA',