Batching API not returning permissions for groups

[akanshikumari]

I am trying to fetch the permissions of multiple files using batching, I have shared a file `abc.txt` to a group which was created automatically and includes invited members. But while running the API, response is not returning that group.
API endpoint: https://api.dropboxapi.com/2/sharing/list_file_members/batch
Response: 

{
        "file": "id:88aWjhZozYsAAAAAAAAAyA",
        "result": {
            ".tag": "result",
            "members": {
                "users": [],
                "groups": [],
                "invitees": []
            },
            "member_count": 0
        }
    },<p> </p>

[Greg-DB]

This is the expected behavior for /2/sharing/list_file_members/batch; groups are not returned by this endpoint. Refer to the /2/sharing/list_file_members/batch documentation for a note about this. To get group information, you'd need to use /2/sharing/list_file_members instead.

[akanshikumari]

I am getting the group if it's group management type is `user_managed` or `company_managed`  but if type is `system_managed`, then  it's not getting returned in /2/sharing/list_file_members/batch .
What's the case of getting the group and what's the case for not getting it in  batching API?

[Greg-DB]

I can't offer more information or a guarantee beyond what's included in the documentation for the endpoint. Please refer to that for information on what information/behavior to rely on for the endpoint.