Function isLiveStreamMessage

src/node/services/sideQuestionService.ts:606–608

(message: MuxMessage)

      parts: liveStream.parts,
    };
    const isLiveStreamMessage = (message: MuxMessage): boolean =>
      message.id === liveStream.messageId ||
      message.metadata?.historySequence === liveStream.historySequence;
    const existingIndex = messages.findIndex(isLiveStreamMessage);
    if (existingIndex === -1) {
      messages.push(liveMessage);