New stuff for categories and transactions.

app/Helpers/Report/BudgetReportHelperInterface.php

@@ -39,4 +39,13 @@ interface BudgetReportHelperInterface
      * @return Collection
      */
     public function getBudgetsWithExpenses(Carbon $start, Carbon $end, Collection $accounts): Collection;
+
+    /**
+     * @param $start
+     * @param $end
+     * @param $accounts
+     *
+     * @return Collection
+     */
+    public function getCategoriesWithTransactions($start, $end, $accounts): Collection;
 }