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private void updateEpicStatus(Epic epic) {
        int allIsDoneCount = 0;
        int allIsInNewCount = 0;


        ArrayList<Subtask> list = epic.getSubtaskList();

        for (Subtask subtask : list) {
            if (subtask.getStatus() == Status.DONE) {
                allIsDoneCount++;
            }
            if (subtask.getStatus() == Status.NEW) {
                allIsInNewCount++;
            }
        }

        if (allIsDoneCount == list.size()) {
            epic.setStatus(Status.DONE);
        } else if (allIsInNewCount == list.size()) {
            epic.setStatus(Status.NEW);
        } else {
            epic.setStatus(Status.IN_PROGRESS);
        }


    }