protected DuoSecurityClient getDuoSecurityClient(final RequestContext requestContext,
                                                     final DuoSecurityMultifactorAuthenticationProvider duoProvider,
                                                     final String duoSecurityIdentifier) {
        return duoProvider.getDuoAuthenticationService().getDuoClient();
    }
This is {@link DuoSecurityUniversalPromptPrepareLoginAction}.

@author Misagh Moayyed
@since 6.3.0
support/cas-server-support-duo-core/src/main/java/org/apereo/cas/adaptors/duo/web/flow/action/DuoSecurityUniversalPromptPrepareLoginAction.java