Data API odata query parameter for aggregation

Our Dev team is recommending a new parameter to help with aggregation and reduce the number of calls to the API - 

The moveworks API currently supports some odata query parameters but is missing one that would make the data metrics collection process more efficient which is the $count query option. Usually, this is used with a filter to aggregate and return a number of items that matches the filter requirement. This option would allow us to only need to call the API once.