default Function<ConfigurableApplicationContext, Long> getProxyTicketStorageTimeout() {
        return ctx -> ctx.getBean(ExpirationPolicyBuilder.BEAN_NAME_PROXY_TICKET_EXPIRATION_POLICY, ExpirationPolicyBuilder.class)
            .buildTicketExpirationPolicy().getTimeToLive();
    }
PT storage timeout.

@return PT storage timeout function
core/cas-server-core-tickets-api/src/main/java/org/apereo/cas/ticket/catalog/CasTicketCatalogConfigurationValuesProvider.java