https://github.com/DavidWells/netlify-functions-workshop/blob/ecb0aaf1c940bd1231ec286d897263a8ccd1ac53/lessons/use-cases/7-sending-emails/functions/sendgrid/sendgrid.js#L14
netlify-functions-workshop/lessons/use-cases/7-sending-emails/functions/sendgrid/sendgrid.js
Line 14 in ecb0aaf