Prepare the view for use.
This calls IndividualAggregator.prepare as necessary to start aggregating all Individuals.
This function is guaranteed to be idempotent, so multiple search views may share a single aggregator; SearchView.prepare must be called on all of the views.
For any clients only interested in a snapshot of search results, SearchView.individuals is valid once this async function is finished.
| GLib.Error |
if preparation failed |
0.11.0