class WorkspaceNameCompletions implements Iterable<String> {
	@Override
	public Iterator<String> iterator() {<FILL_FUNCTION_BODY>}
}

		Workspace workspace = Recaf.getCurrentWorkspace();
		if (workspace == null)
			return Collections.emptyIterator();
		return workspace.getClassNames().stream().sorted().iterator();
	
<no_super_class>