Pagination object is not clear when using `continuationToken`

[sneko]

Hi, let's say I make a list request (with no continuation token) returning:

    "pagination": {
        "pageSize": 100,
        "totalCount": 84,
        "pageIndex": 1,
        "totalPages": 1,
        "continuationToken": "xxx_yyy"
    }

If I set now xxx_yyy as query parameter continuationToken, I will get the following:

    "pagination": {
        "pageSize": 100,
        "totalCount": 4,
        "pageIndex": 1,
        "totalPages": 1,
        "continuationToken": "xxx_yyy"
    }

I'm expecting a marker to say the pagination has ended. Either by having continuationToken: null or a boolean hasNextPage: false. Because in the above responses I cannot assume I reached the last page.

I could for sure say "if I get 2 times the same continuation tokens, it means it's the end"... but it means I have to do N+1 requests all the time.

Or maybe you assume developers need to rely on the condition totalPages === 1 but not that obvious. (Indeed if using pageSize: 20 I will see the totalPages being from 5 to 1 when the last page appears).