{
    "success": true,
    "data": [
        {
            "id": 1,
            "grade_code": "grade_1",
            "grade_name": "Grade 1",
            "sort_order": 1
        },
        {
            "id": 2,
            "grade_code": "grade_2",
            "grade_name": "Grade 2",
            "sort_order": 2
        },
        {
            "id": 3,
            "grade_code": "grade_3",
            "grade_name": "Grade 3",
            "sort_order": 3
        },
        {
            "id": 4,
            "grade_code": "grade_4",
            "grade_name": "Grade 4",
            "sort_order": 4
        },
        {
            "id": 5,
            "grade_code": "grade_5",
            "grade_name": "Grade 5",
            "sort_order": 5
        }
    ]
}