How to get callout count box.toolkit used?

Hi there,

Is there any way to get current callout count in apex after callout using sendRequest with box.toolkit? 

I used limits.getCallouts() but it doesn't show correct count.

Expected callout count is 5 (we can check it in limit usage log)

Actual callout count result by getCallouts() is 0.

Thanks in advance.

here is log result.

here is sample code.

String endpoint = 'https://api.box.com/2.0/folders/10101010101/items/';
HttpRequest request = new HttpRequest();
request.setMethod('GET');
request.setEndpoint(endpoint);
request.setHeader('content-type', 'application/json');
Box.Toolkit boxToolkit = new Box.Toolkit();
HttpResponse response = boxToolkit.sendRequest(request);
system.debug('result =' + response);
System.debug('getCallouts='+limits.getCallouts());