@Override
    public Set<String> getConnectionIdentifiers() {
        throw new UnsupportedOperationException("Operation not supported.");
    }
Create a new APIConnectionGroupWrapper to wrap the given 
APIConnectionGroup as a ConnectionGroup.
@param apiConnectionGroup the APIConnectionGroup to wrap.
guacamole/src/main/java/org/apache/guacamole/rest/connectiongroup/APIConnectionGroupWrapper.java