[Python] Is it possible to use Flask RestX wih Flask's 2.0+ async await?

Usage of async/await was presented in Flask 2.0. (https://flask.palletsprojects.com/en/2.0.x/async-await/)

I am using Flask-RestX so is it possible to use async/await in RestX requests handlers?

Something like:

@api.route('/try-async')
class MyResource(Resource):
@api.expect(some_schema)
async def get(self):
result = await async_function()
return result


is not working and when I try to reach this endpoint I'm getting error:

TypeError: Object of type coroutine is not JSON serializable

Is there any info on that?

Package versions:

flask==2.0.1
flask-restx==0.4.0


and I've also installed flask[async] as documentation suggests.

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