How can I get the action server requests information?

Rasa Open Source
1

environment:

rasa-sdk = 2.8.5

rasa == 2.8.17

question:

When using flask, we can use request.headers.get (key) method obtains the requested header information. In rasa, is there any method to obtain the header information of http://<host>: <port>/webhooks/rest/webhook?