function changeAtimport { changeAt } from "https://deno.land/x/automerge@2.2.0/next.ts"; changeAt<T>(doc: Doc<T>,scope: Heads,options: string | ChangeOptions<T> | ChangeFn<T>,callback?: ChangeFn<T>,): ChangeAtResult<T>Make a change to the document as it was at a particular point in history Type ParametersTParametersdoc: Doc<T> The document to update scope: Heads The heads representing the point in history to make the change options: string | ChangeOptions<T> | ChangeFn<T> Either a message or a ChangeOptions for the new change optionalcallback: ChangeFn<T> A ChangeFn to be used if options was a string ReturnsChangeAtResult<T>