code: def _get_or_create_backend(self):
      return get_or_create_backend(
          self.getBackend(),
          self.getNumProc(),
          self.getVerbose(),
          self.getUseGpu(),
      )
  
imports: import sys
  import torchvision.transforms
  from horovod.spark.common.backend import SparkBackend
  from horovod.spark.lightning import TorchEstimator
  from PIL import Image
  from pyspark.context import SparkContext
  from pyspark.ml.param.shared import Param, Params
  from pytorch_lightning.utilities import _module_available
  from synapse.ml.dl.DeepVisionModel import DeepVisionModel
  from synapse.ml.dl.LitDeepVisionModel import LitDeepVisionModel
  from synapse.ml.dl.utils import keywords_catch, get_or_create_backend
  from synapse.ml.dl.PredictionParams import VisionPredictionParams
label_desc: Use image node_id 19 for calling the DeepVisionClassifier obj's underlying member method code with example usage: obj._get_or_create_backend() and returns: get_or_create_backend