I am looking for an example for using Bearer Authentication within python using helper.send_http_request in the Splunk addon builder. All the example I have found so far have "headers=None".
Python helper functions
https://docs.splunk.com/Documentation/AddonBuilder/4.3.0/UserGuide/PythonHelperFunctions
Try adding it as you would a header dictionary:
headers = {"Authorization": "Bearer TOKENGOESHERE"}