Async functions make it easy to write code which needs to "block" on certain asynchronous events JavaScript. Async/await does this by providing a simpler and more ergonomic way to use Promises. To block on a value, use the 'await' keyword. Async/await can be implemented based on a desugaring to generators, as described in the following design doc: https://docs.google.com/document/d/1K38ct2dsxG_9OfmgErvFld4MPDC4Wkr8tPuqmSWu_3Y/edit?usp=sharing
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]