Carrying Filter Requests

In the MICO implementation, static invocations are encapsulated into objects of StaticRequest class on the client side, and into objects of StaticServerRequest class on the server side. We specialize these two classes to carry filter requests--invocations routed to filter objects. Hence classes FilterRequest and FilterServerRequest inherit StaticRequest and StaticServerRequest classes respectively. Methods op_name, read_args and write_results of the StaticServerRequest class are overridden in the Filter-ServerRequest class for specialized implementation.