public Map<String, Set<ObjectPermission.Type>> getConnectionGroupPermissions() {
        return connectionGroupPermissions;
    }
Returns a map of connection group IDs to the set of permissions granted
for that connection group. If no permissions are granted to a particular
connection group, its ID will not be present as a key in the map. This
map is mutable, and changes to this map will affect the permission set
directly.

@return
    A map of connection group IDs to the set of permissions granted for
    that connection group.
guacamole/src/main/java/org/apache/guacamole/rest/permission/APIPermissionSet.java