docs: public void registerStream(int streamId, int dependency, int weighting, boolean exclusive) {
          final Http2PriorityNode node = new Http2PriorityNode(streamId, weighting);
          if(exclusive) {
              Http2PriorityNode existing = nodesByID.get(dependency);
              if(existing != null) {
                  existing.exclusive(node);
              }
          } else {
              Http2PriorityNode existing = nodesByID.get(dependency);
              if(existing != null) {
                  existing.addDependent(node);
              }
          }
          nodesByID.put(streamId, node);
      }