Function create_chat_completion_stream

pub async fn create_chat_completion_stream(
    client: &OpenAIClient,
    request: &CreateChatCompletionRequest,
) -> Result<impl Stream<Item = Result<CreateChatCompletionChunk, OpenAIError>>, OpenAIError>

Creates a streaming chat-based completion using the OpenAI Chat Completions API. When stream is set to Some(true), partial updates (chunks) are returned. Each item in the stream is a partial update represented by CreateChatCompletionChunk.