code: public Collection<Request> getOwnedRequests(RequestFilter filter) {
          filter = (filter != null) ? filter : new RequestFilter();
  
          filter.owner.clear();
          filter.owner.add(this);
          return getInstance().get().requests(filter);
      }
docs: A read-only collection of Requests owned by this member.
  
  @param filter Limit the requests returned (If null, then all items
  returned).
  @return A collection requests that belong to this member filtered by the
  passed in filter.