@Override
    public void browserActivated(HierarchyBrowser hierarchyBrowser) {
        ((SdCallHierarchyBrowser) hierarchyBrowser).changeView(CallHierarchyBrowserBase.getCallerType());
    }
This class is used for the extension (in plugin.xml), to enable "Call Hierarchy" window using the plugin code.

@author Shahar Ariel
integration/intellij/src/main/java/ai/vespa/intellij/schema/hierarchy/SdCallHierarchyProvider.java