findAndObserve: Be aware that findAndObserve may throw an error if the ‘id’ it is looking for does not exist in the database. Always ensure that you are using this method in a safe way.
withObservables:
2nd level query or “A query in a query” export const withSystemIds = withObservables([], ({database}) => ({ currentChannelId: database.collections.get(SYSTEM).findAndObserve(SYSTEM_IDENTIFIERS.CURRENT_CHANNEL_ID),