public function destroy($lrs_id, array $opts)
{
// Delete related documents from client and oauth_clients collections.
$clients = ClientModel::where('lrs_id', $lrs_id)->get();
foreach ($clients as $client) {
$client->delete();
}
StatementModel::where('lrs_id', $lrs_id)->delete();
return parent::destroy($lrs_id, $opts);
}