code: public void request(List<org.apache.mesos.v1.Protos.Request> requests) {
      Builder request = build().setRequest(Request.newBuilder().addAllRequests(requests));
      sendCall(request, Type.REQUEST);
    }
docs: Sent by the scheduler to request resources from the master/allocator. The built-in hierarchical allocator simply
  ignores this request but other allocators can interpret this in a customizable fashion.
  
  @param requests