CompletionProvider.populateAsync

Asynchronously requests that the provider populates the completion results for context.

For providers that would like to populate a [gio.list_model.ListModel] while those results are displayed to the user, [gtksource.completion_context.CompletionContext.setProposalsForProvider] may be used to reduce latency until the user sees results.

Parameters

contexta #GtkSourceCompletionContext
cancellablea #GCancellable or null
callbacka callback to execute upon completion