code: def transform(self, transformer):
      if isinstance(transformer, FeatureTransformer):
          jvalue = callBigDlFunc(
              self.bigdl_type,
              "featureTransformDataset",
              self.value,
              transformer,
          )
          return DataSet(jvalue=jvalue)
  
file_path: BigDL/python/dllib/src/bigdl/dllib/feature/dataset/dataset.py
imports: import sys
  from bigdl.dllib.utils.common import JavaValue
  from bigdl.dllib.utils.common import callBigDlFunc
  from bigdl.dllib.utils.common import *
  from bigdl.dllib.feature.transform.vision.image import *
label_desc: Use image node_id 3 for calling the DataSet obj's underlying member method code with example usage: obj.transform(transformer) and returns: DataSet