Bool, not string

comar/models/System.Manager.xml

@@ -24,7 +24,7 @@
           <arg name="repositories" type="as" direction="in"/>
         </method>
         <method name="setRepoActivities">
-          <arg name="repos" type="a{ss}" direction="in"/>
+          <arg name="repos" type="a{sb}" direction="in"/>
         </method>
         <method name="setCache">
           <arg name="enabled" type="b"/>