data.json

{
    "user": [
        {
            "id": 1,
            "firstname": "test_fullname",
            "email": "test@test.com"
        },
        {
            "id": 2,
            "firstname": "test2_fullname",
            "email": "test2@test.com"
        }
    ],
    "course": [
        {
            "id": 1,
            "fullname": "test_name",
            "lang": "en"
        }
    ],
    "course_modules": [
        {
            "id": 1,
            "course": 1,
            "module": 1,
            "instance": 1
        }
    ],
    "assign": [
        {
            "id": 1,
            "name": "test_name"
        }
    ],
    "grade": [
        {
            "id": 1,
            "userid": 2,
            "assignment": 1,
            "grade": 1
        }
    ],
    "assignfeedback_comments": [
        {
            "id": 1,
            "assignment": 1,
            "grade": 1,
            "commenttext": "test_comment_text"
        }
    ],
    "grade_items": [
        {
            "id": 1,
            "itemmodule": "assign",
            "iteminstance": 1,
            "grademin": 0,
            "grademax": 2,
            "gradepass": 1
        }
    ]
}