Recently I did an API call for the requested items of a service request: https://api.freshservice.com/#view_req_items_of_sr

In the past it looked like this:

{
  "requested_items": [
    {
      "custom_fields": {
        "request_type": "xxxx",
        "name_new_employee": "xxxx",
        "location_new_employee": xxxx,
        "manger_new_employee": xxxx,
        "date_of_entry_new_employee": "xxxx",
        "comment_new_employee": "xxxx",
        "select_your_old_computer": null,
        "what_should_happen_with_the_old_device": null,
        "manager_replace_device": null,
        "comment_replace_device": null
      },
      "id": xxxx,
      "created_at": "xxxx",
      "updated_at": "xxxx",
      "quantity": 1,
      "stage": 1,
      "loaned": false,
      "cost_per_request": 0,
      "remarks": null,
      "delivery_time": null,
      "is_parent": true,
      "service_item_id": xxxx
    }
  ]
}

If I do the same request today it looks like this (there have been added some fields form our side - ignore that fact):

{
    "requested_items": [
        {
            "custom_fields": {
                "request_type": "xxxx",
                "name_new_employee": "xxxx",
                "location_new_employee": xxxx,
                "job_family_new_employee": xxxx,
                "justification": "xxxx",
                "manager_new_employee": xxxx,
                "date_of_entry_new_employee": "xxxx",
                "comment_new_employee": "xxxx",
                "select_your_old_computer": null,
                "what_should_happen_with_the_old_device": null,
                "manager_replace_device": null,
                "comment_replace_device": null
            },
            "custom_dropdown_tags": [],
            "custom_boolean_tags": [],
            "ff_single_line_tf": [
                "xxxx",
                "xxxx"
            ],
            "custom_paragraphs": [
                "xxxx",
                "xxxx"
            ],
            "quantity": 1,
            "remarks": null,
            "updated_at": "xxxx",
            "stage": 1,
            "loaned": false,
            "cost_per_request": xxxx,
            "custom_multi_select_dropdown_tags": [],
            "custom_multi_select_dropdowns": [],
            "id": xxxx,
            "created_at": "xxxx",
            "delivery_time": null,
            "is_parent": true,
            "service_item_id": xxxx,
            "service_item_name": "xxxx",
            "attachments": [],
            "cloud_files": []
        }
    ]
}

As you can see FreshService introduced new attributes like:

custom_dropdown_tags
custom_boolean_tags
custom_paragraphs
ff_single_line_tf
custom_multi_select_dropdown_tags
custom_multi_select_dropdowns
cloud_files

Do you know what all these fields are and where they are documented?