block: Writes wait until buffer space is available. Use when you trust the producer to await writes properly.
Me at the Zoo was the first video posted to Youtube by its co-founder Jawed Karim，更多细节参见同城约会
The model must be autoregressive. It receives a token sequence as input and predicts the next token. Output digits are generated one at a time, with each new token fed back as input for predicting the next. The carry propagation must emerge from this autoregressive process — not from explicit state variables passed between steps in Python.，推荐阅读搜狗输入法下载获取更多信息
self.writer.writeheader()