我试图连接到Snapchat Marketing API，但不断得到<Respone [401]>错误，我可以在我的Python代码中发现问题吗？

import requests
token = "abc" #token generated from Conversions API Tokens in Snapchat Business Account
authorization = f'Bearer {token}'
headers = {"Authorization": authorization}
r = requests.get ('https://adsapi.snapchat.com/v1/me', headers=headers)
print(r)

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