@Override
    public boolean canFindUsagesFor(PsiElement psiElement) {
        return psiElement instanceof PsiNamedElement;
    }
This class is used for the extension (in plugin.xml), to enable "find Usages" window using the plugin code.

@author Shahar Ariel
integration/intellij/src/main/java/ai/vespa/intellij/schema/findUsages/SdFindUsagesProvider.java