36. oauth2の認証
#セッション作成
mfcloud_invoice = OAuth2Session(client_id, scope="write",
redirect_uri="https://example.com", state=None)
#認証
authorization_url, state =
mfcloud_invoice.authorization_url(authorization_base_url)
#(次のページで認証した後のコールバックURLを貼り付ける)
print('Please go here and authorize,', authorization_url)
redirect_response = input('Paste the full redirect URL here:')