[Bug]: session.ask() doesn't support stream=False

[Nalkey]

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RAGFlow workspace code commit ID

c54ec09

RAGFlow image version

v0.17.2 full

Other environment information

Actual behavior

Current result during conversing with assitant/agent with Stream=False

Codes:

`from ragflow_sdk import RAGFlow, Agent

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
AGENT_id = "AGENT_ID"
agent = rag_object.list_agents(id = AGENT_id)[0]
session = agent.create_session()

print("\n===== Miss R ====\n")
print("Hello. What can I do for you?")

while True:
question = input("\n===== User ====\n> ")
print("\n==== Miss R ====\n")

cont = ""
for ans in session.ask(question, stream=False):
    print(ans.content[len(cont):], end='', flush=True)
    cont = ans.content`

Result:

Traceback (most recent call last): File "/tmp/test.py", line 16, in <module> for ans in session.ask(question, stream=False): File "/usr/local/lib/python3.10/dist-packages/ragflow_sdk/modules/session.py", line 46, in ask raise Exception(json_data["message"]) KeyError: 'message'

Expected behavior

Expected:

Codes:

`from ragflow_sdk import RAGFlow, Agent

rag_object = RAGFlow(api_key="<YOUR_API_KEY>", base_url="http://<YOUR_BASE_URL>:9380")
AGENT_id = "AGENT_ID"
agent = rag_object.list_agents(id = AGENT_id)[0]
session = agent.create_session()

print("\n===== Miss R ====\n")
print("Hello. What can I do for you?")

while True:
question = input("\n===== User ====\n> ")
print("\n==== Miss R ====\n")

ans = session.ask(question, stream=False)
print(ans.content)`

Then we can get the awnser.

Steps to reproduce

1. Follow the instructs of https://ragflow.io/docs/dev/python_api_reference#converse-with-agent
2. Change the value of parameter `stream` as `False`
3. Execute the script, and ask your question

Additional information

If we only keep session.ask(), we cannot support streaming and non-streaming at the meanwhile due to the yield.
So we have to create a new function to support the non-streaming senario.