code: def _build_serving_graph(self):
      super(PMF, self)._build_serving_graph()
      self._scores = self._get_module(
          "interaction", train=False
      ).get_outputs()[0]
  
file_path: openrec/openrec/tf1/legacy/recommenders/pmf.py
imports: from openrec.tf1.legacy.recommenders import Recommender
  from openrec.tf1.legacy.modules.extractions import LatentFactor
  from openrec.tf1.legacy.modules.interactions import PointwiseMSE
label_desc: Use image node_id 9 for calling the PMF obj's underlying member method code with example usage: obj._build_serving_graph() without return types