why await no support from demo

[landhu]

[ ] I have checked the documentation and related resources and couldn't resolve my bug.

Describe the bug
run demo in https://docs.ragas.io/en/latest/getstarted/evals/#evaluating-using-a-llm-based-metric

Ragas version:
Python version: 3.10
Ragas Version: ragas 0.2.13

Code to Reproduce
same as demo

Error trace
File "D:\PyInvo\ragas_demo.py", line 271
await metric.single_turn_ascore(SingleTurnSample(**test_data))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
SyntaxError: 'await' outside function

And in my pycharm, also have error:

Expected behavior
A clear and concise description of what you expected to happen.

Additional context
Add any other context about the problem here.

[sahusiddharth]

Hi @landhu,

I tried reproducing the error with the same Python and Ragas versions, but I wasn't able to replicate the issue. Could you please share the full error trace or any additional context that might help identify the root cause?

[yesidc]

The code needs to be in inside aasync def function. See this pull request for an example #1983