# WebsocketHeartbeat
## Properties
**interval_secs** | **i32** | Interval in seconds between heartbeat messages |
**message** | **String** | Message to send as heartbeat. Use {{state}} as a placeholder for a value extracted from incoming messages (see state_field). |
**state_field** | Option<**String**> | Optional. Top-level JSON field to extract from incoming messages. The extracted value replaces {{state}} in the heartbeat message. | [optional]
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