pub fn extract_thread_root(
event: &Raw<AnySyncTimelineEvent>,
) -> Option<OwnedEventId>Expand description
Try to extract the thread root from a timeline event, if provided.
The thread root is the field located at content.m.relates_to.event_id,
if the field at content.m.relates_to.rel_type is m.thread.
Returns None if we couldn’t find a thread root, or if there was an issue
during deserialization.