Asynchronously requests that the provider populates the completion
results for @context.
For providers that would like to populate a [iface@Gio.ListModel] while those
results are displayed to the user,
[method@CompletionContext.set_proposals_for_provider] may be used
to reduce latency until the user sees results.
Asynchronously requests that the provider populates the completion results for @context.
For providers that would like to populate a [iface@Gio.ListModel] while those results are displayed to the user, [method@CompletionContext.set_proposals_for_provider] may be used to reduce latency until the user sees results.