//tag::ref-doc[] = Twitter Message Source Repeatedly retrieves the direct messages (both sent and received) within the last 30 days, sorted in reverse-chronological order. The relieved messages are cached (in a `MetadataStore` cache) to prevent duplications. By default an in-memory `SimpleMetadataStore` is used. The `twitter.message.source.count` controls the number or returned messages. The `spring.cloud.stream.poller` properties control the message poll interval. Must be aligned with used APIs rate limit == Options https://github.com/spring-cloud/spring-functions-catalog/tree/main/supplier/spring-twitter-supplier#3-twitter-direct-message-supplier[See function catalog for configuration options] //end::ref-doc[]