How can I enable pagination for an unknown number of rows?

I'm trying to implement server-side pagination but the server doesn't return the total number of items.
In the [MaterialUI TablePagination component docs](https://material-ui.com/api/table-pagination/#props) it says that `count` prop should be `-1` to enable pagination, I tried to set `options.count` to `-1` as it's passed down to the `MuiTablePagination` component but the pagination buttons are disabled.
Is there a way I can enable pagination for an unknown number of items?

## Your Environment

| Tech | Version |
|--------------|---------|
| Material-UI | 4.7.1 |
| MUI-datatables | 2.12.4 |
| React | 16.12.0 |

Start by tracing how options.count is passed to the MuiTablePagination component, then compare the behavior with the Material-UI TablePagination documentation for count=-1. Verify the pagination controls with a server-side data source whose total item count is unknown; done means the controls remain usable and allow navigation through available pages.

Written by the indexing model from the issue text.