ChangePage(page) pageint 1..The page number to go to.
Helpers that build a minecraft:click_event object, one for each of its types. Where a field takes one, write the helper's call; its
name is the type it makes. Click a type to see what it accepts.
Custom(id, payload?) idid ID of a custom action. Has no functionality on vanilla servers.
payloadoptionalany (depends on id)