firefly-iii/app/lib/Firefly/Helper/Controllers/AccountInterface.php

<?php

namespace Firefly\Helper\Controllers;

use Illuminate\Database\Eloquent\Collection;

/**
 * Interface AccountInterface
 *
 * @package Firefly\Helper\Controllers
 */
interface AccountInterface
{

    /**
     * Build the index:
     *
     * @param Collection $accounts
     *
     * @return mixed
     */
    public function index(Collection $accounts);

    /**
     * @param Account $account
     *
     * @return mixed
     */
    public function openingBalanceTransaction(\Account $account);

}