Garmin API无法验证（验证错误）

Question

我正在尝试建立到garmin API的连接并建立到Authentication连接，但出现错误：

requests_oauthlib.oauth1_session.VerifierMissing: No client verifier has been set.

有人能提供一个完整的例子来说明如何建立连接吗？ 我的代码是：

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错误是：

File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/requests_oauthlib/oauth1_session.py", line 319, in fetch_access_token raise VerifierMissing('No client verifier has been set.') requests_oauthlib.oauth1_session.VerifierMissing: No client verifier has been set.