public ChatRequestBuilder stream(Boolean stream) {
		request.setStream(stream);
		return this;
	}
If set, partial message deltas will be sent, like in ChatGPT. Tokens will be sent
as data-only server-sent events as they become available, with the stream
terminated by a data: [DONE] message.
@param stream stream or not, Defaults to false
@return builder
src/main/java/org/mvnsearch/chatgpt/model/completion/chat/ChatRequestBuilder.java