in aidial_sdk/chat_completion/stage.py [0:0]
def append_content(self, content: str):
if not self._opened:
raise runtime_error("Trying to append content to an unopened stage")
if self._closed:
raise runtime_error("Trying to append content to a closed stage")
self._queue.put_nowait(
ContentStageChunk(self._choice_index, self._stage_index, content)
)