@Override
    protected String getRequiredScope() {
        return OAuth20Constants.UMA_AUTHORIZATION_SCOPE;
    }
This is {@link UmaAuthorizationApiTokenAuthenticator}.

@author Misagh Moayyed
@since 6.0.0
support/cas-server-support-oauth-uma-core/src/main/java/org/apereo/cas/uma/web/authn/UmaAuthorizationApiTokenAuthenticator.java