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For this to work, the module containing the keys must be registered as io.picolabs.lesson_keys because that's the name of the module we load. The ruleset using the keys must be registered as io.piolabspicolabs.use_twilio_v2 since that's the name of the ruleset the keys are provided to in the provide keys pragma. You can store the ruleset containing the keys on AWS S3 behind a private URL, on a Web server with Basic Auth, or using some other scheme that will protect it from viewing by people who would steal the keys. The ruleset using the keys can be stored at a public URL.
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