AnthropicVertex stream chat generation is taking too much time about anthropic-sdk-python HOT 7 CLOSED

class AnthropicLLM:
    def __init__(self, anthropic_client : Anthropic, anthropic_vertex_client : AnthropicVertex) -> None:
        self.anthropic = anthropic_client
        credentials, project_id = google.auth.load_credentials_from_dict(google_credentials_info, scopes=["https://www.googleapis.com/auth/cloud-platform"],)
        anthropic_vertex_client._credentials = credentials
        self.vertex_anthropic = anthropic_vertex_client
        self.messages = Messages(self)

class Messages:
    def __init__(self, client : AnthropicLLM) -> None:
        self.client = client

    def create(self, model : str, messages : list[Message], temperature : float, system : str, stream : bool, max_tokens : int, tool_choice : str, tools : list[dict]):
        model = model.replace("@", "-")
        import time
        st = time.time()
        if(tools == []):
            response = self.client.vertex_anthropic.messages.create(
                    model=model,
                    messages=messages,
                    temperature=temperature,
                    system=system,
                    stream=True,
                    max_tokens=max_tokens
                )
            print(response)
            print(time.time()-st)
            return response
        else:
            return self.client.vertex_anthropic.messages.create(
                    model=model,
                    messages=messages,
                    temperature=temperature,
                    system=system,
                    stream=stream,
                    max_tokens=max_tokens,
                    tool_choice=tool_choice,
                    tools=tools
                )