docs: public TopologyAPI.Topology trimTopology(TopologyAPI.Topology topology) {
  
      // create a copy of the topology physical plan
      TopologyAPI.Topology.Builder builder = TopologyAPI.Topology.newBuilder().mergeFrom(topology);
  
      // clear the state of user spout java objects - which can be potentially huge
      for (TopologyAPI.Spout.Builder spout : builder.getSpoutsBuilderList()) {
        spout.getCompBuilder().clearSerializedObject();
      }
  
      // clear the state of user spout java objects - which can be potentially huge
      for (TopologyAPI.Bolt.Builder bolt : builder.getBoltsBuilderList()) {
        bolt.getCompBuilder().clearSerializedObject();
      }
  
      return builder.build();
    }