How to get attributes/barcodes on "List Variants of..." REST API call

I have this request:

https://{host}/api/resource/Item/Gloves-Variant-1

which returns something like this:

{
    "data": {
        ...,
        "barcodes": [
            { ... }
        ],
        "reorder_levels": [],
        "uoms": [
            { ... }
        ],
        "attributes": [
            { ... }
        ],
        "item_defaults": [
            { ... }
        ],
        "supplier_items": [
            { ... }
        ],
        "customer_items": [],
        "taxes": [],
        "website_item_groups": [],
        "website_specifications": []
    }
}

However, when I make this call:

https://{host}/api/resource/Item?filters=[[“variant_of”,"=",“Gloves”]]&fields=["*"]

I don’t see barcodes, attributes, and other fields that are objects in the response. only string/bool/int fields. Is there a way I can include those in the response?

Furthermore, requesting:

https://{host}/api/resource/Item?filters=[[“variant_of”,"=",“Gloves”]]&fields=[“attributes”]

returns

500 INTERNAL SERVER ERROR

with the following body:

Traceback (most recent call last):

  File "/home/frappe/benches/bench-version-12-2020-02-24/apps/frappe/frappe/app.py", line 60, in application

    response = frappe.api.handle()

  File "/home/frappe/benches/bench-version-12-2020-02-24/apps/frappe/frappe/api.py", line 120, in handle

    doctype, **frappe.local.form_dict)})

  File "/home/frappe/benches/bench-version-12-2020-02-24/apps/frappe/frappe/__init__.py", line 1051, in call

    return fn(*args, **newargs)

  File "/home/frappe/benches/bench-version-12-2020-02-24/apps/frappe/frappe/client.py", line 35, in get_list

    limit_start=limit_start, limit_page_length=limit_page_length, ignore_permissions=False)

  File "/home/frappe/benches/bench-version-12-2020-02-24/apps/frappe/frappe/__init__.py", line 1287, in get_list

    return frappe.model.db_query.DatabaseQuery(doctype).execute(None, *args, **kwargs)

  File "/home/frappe/benches/bench-version-12-2020-02-24/apps/frappe/frappe/model/db_query.py", line 96, in execute

    result = self.build_and_run()

  File "/home/frappe/benches/bench-version-12-2020-02-24/apps/frappe/frappe/model/db_query.py", line 130, in build_and_run

    return frappe.db.sql(query, as_dict=not self.as_list, debug=self.debug, update=self.update)

  File "/home/frappe/benches/bench-version-12-2020-02-24/apps/frappe/frappe/database/database.py", line 171, in sql

    self._cursor.execute(query)

  File "/home/frappe/benches/bench-version-12-2020-02-24/env/lib/python3.6/site-packages/pymysql/cursors.py", line 170, in execute

    result = self._query(query)

  File "/home/frappe/benches/bench-version-12-2020-02-24/env/lib/python3.6/site-packages/pymysql/cursors.py", line 328, in _query

    conn.query(q)

  File "/home/frappe/benches/bench-version-12-2020-02-24/env/lib/python3.6/site-packages/pymysql/connections.py", line 517, in query

    self._affected_rows = self._read_query_result(unbuffered=unbuffered)

  File "/home/frappe/benches/bench-version-12-2020-02-24/env/lib/python3.6/site-packages/pymysql/connections.py", line 732, in _read_query_result

    result.read()

  File "/home/frappe/benches/bench-version-12-2020-02-24/env/lib/python3.6/site-packages/pymysql/connections.py", line 1075, in read

    first_packet = self.connection._read_packet()

  File "/home/frappe/benches/bench-version-12-2020-02-24/env/lib/python3.6/site-packages/pymysql/connections.py", line 684, in _read_packet

    packet.check_error()

  File "/home/frappe/benches/bench-version-12-2020-02-24/env/lib/python3.6/site-packages/pymysql/protocol.py", line 220, in check_error

    err.raise_mysql_exception(self._data)

  File "/home/frappe/benches/bench-version-12-2020-02-24/env/lib/python3.6/site-packages/pymysql/err.py", line 109, in raise_mysql_exception

    raise errorclass(errno, errval)

pymysql.err.InternalError: (1054, "Unknown column 'attributes' in 'field list'")