Function start

src/chat.ts:462–470

(controller)

      const encoder = new TextEncoder();
      return new ReadableStream({
        start(controller) {
          controller.enqueue(encoder.encode(`data: ${JSON.stringify({
            id: "", model: MODEL_NAME, object: "chat.completion.chunk",
            choices: [{ index: 0, delta: { role: "assistant", content: "服务暂时不可用，第三方响应错误" }, finish_reason: "stop" }],
            usage: { prompt_tokens: 1, completion_tokens: 1, total_tokens: 2 },
            created: unixTimestamp(),
          })}\n\n`));
          controller.close();
        }
      });
    }
    return createTransStream(model, response.body!, (convId: string) => {