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Hi, is there a minimal example of using the Single Sends function through Python3? I'm having some trouble with authentication issues to do with verified Sender IDs and suppression groups, and it would really help to see some skeleton code for a working example.

Given the nature of the project we should provide to users all the tools to verify that the content being served to the browser is the one present on this repository, allowing users to detect when instances modify the assets that are being served.

One feature that might be helpful for this purpose is [Subresource Integrity](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integ