Hello,
That appears to be a bug in the Python SDK.
Body with an empty dict or an empty array/list appears to be serialized as None/null.
I'll work on this shortly, creating a fix end of this week or early next week.
I'll update this post when the fix is done and when a new version of the Python SDK with it is made available.
Thanks for reporting this.
Regards,
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Jerome Saint-Marc
Senior Development Support Engineer
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