classIotTopicPublishAction(TypedDict,closed=True):mqtt_topic:"capo_iot_events.types.mqtt_topic.MQTTTopic""""<p>The MQTT topic of the message. You can use a string expression that includes variables (<code>$variable.<variable-name></code>) and input values (<code>$input.<input-name>.<path-to-datum></code>) as the topic string.</p>"""payload:NotRequired["capo_iot_events.types.payload.Payload"]"""<p>You can configure the action payload when you publish a message to an AWS IoT Core topic.</p>"""