public static void setMultifactorAuthenticationTrustedInScope(final RequestContext requestContext) {
        val flashScope = requestContext.getFlashScope();
        flashScope.put(AbstractMultifactorTrustedDeviceWebflowConfigurer.MFA_TRUSTED_AUTHN_SCOPE_ATTR, Boolean.TRUE);
    }
Sets multifactor authentication trusted in scope.

@param requestContext the request context
support/cas-server-support-trusted-mfa-core/src/main/java/org/apereo/cas/trusted/util/MultifactorAuthenticationTrustUtils.java