[
        {"keyName": "reg_name", "sourceTable": "hdb_program_registration", "sourceColumn": "full_name", "dataType": "string", "isNullable": false},
        {"keyName": "course_name", "sourceTable": "computed", "sourceColumn": "getProgramField:name", "dataType": "string", "isNullable": false},
        {"keyName": "payment_link", "sourceTable": "computed", "sourceColumn": "generatePaymentLink", "dataType": "string", "formatType": "url", "isNullable": false}
    ]