ConstReadonlyConsumerStalledHdr: "Nats-Consumer-Stalled"ReadonlyLastConsumerSeqHdr: "Nats-Last-Consumer"Set for heartbeat messages
ReadonlyLastStreamSeqHdr: "Nats-Last-Stream"Set for heartbeat messages
ReadonlyMessageSizeHdr: "Nats-Msg-Size"Set for headers_only consumers indicates the number of bytes in the payload
ReadonlyPendingBytesHdr: "Nats-Pending-Bytes"Set on protocol messages to indicate pull request byte count that was not honored
ReadonlyPendingMessagesHdr: "Nats-Pending-Messages"Set on protocol messages to indicate pull request message count that was not honored.
ReadonlyRollupHdr: "Nats-Rollup"ReadonlyRollupValueAll: "all"ReadonlyRollupValueSubject: "sub"ReadonlyStreamSourceHdr: "Nats-Stream-Source"Set if message is from a stream source - format is stream seq
Set for heartbeat messages if the consumer is stalled