IMPORTANT: we are mid-way through migrating away from this Events.ts file in favour of defining events next to the class that emits them.

However we need to maintain this file for now because the legacy DocLint system relies on them. Be aware in the mean time if you make a change here you probably need to replicate it in the relevant class. For example if you add a new Page event, you should update the PageEmittedEvents enum in src/common/Page.ts.

Chat to @jackfranklin if you're unsure.