init
Initialize the timeline with the start event.
Consider wrapping this method call in a timeout, since it might fetch the start event from the server if it is not found locally.
The timeline can be initialized multiple times from different starting events. If doing so, it must be ensured, that there is no running call to loadBefore or loadAfter. Otherwise init will suspend until loadBefore or loadAfter are finished.
Parameters
start From
The event id to try start timeline generation from. Default: last room event id