code: def runner(self):
      runner_cfg = self.config.runner_cfg
      if runner_cfg == {}:
          raise RuntimeError(
              "No `runner` is specified in the configuration file."
          )
      runner = self.build_component(runner_cfg)
      return runner
  
file_path: PaddleSeg/contrib/PanopticSeg/paddlepanseg/cvlibs/config.py
imports: import paddleseg
  from paddleseg.cvlibs import builder
  from paddleseg.utils import logger
  from paddleseg.utils.utils import CachedProperty
  from .None import manager
label_desc: Use image node_id 3 for calling the PanSegBuilder obj's underlying member method code with example usage: obj.runner() and returns: runner