How to solve the bug about issue #69

[BoYi0126]

This issue pertains to issue #69.
This problem has been present since 2021 but has yet to be resolved.
Testing through sample code or Postman yields the same result.
The result obtained is always "Unauthorized".
Does anyone know how to properly utilize API V2.0?

Thank you in advance to all the tech wizards out there.

Sample code:
https://github.com/twitterdev/Twitter-API-v2-sample-code/blob/main/Follows-Lookup/following_lookup.py

Error message:
Exception: Request returned an error: 401 {
"title": "Unauthorized",
"type": "about:blank",
"status": 401,
"detail": "Unauthorized"
}