public static String getDelegatedAuthenticationClientName(final RequestContext requestContext) {
        return requestContext.getFlowScope().get("delegatedAuthenticationClientName", String.class);
    }
Gets delegated authentication client name.

@param requestContext the request context
@return the delegated authentication client name
support/cas-server-support-pac4j-core/src/main/java/org/apereo/cas/web/flow/DelegationWebflowUtils.java