code: def iter_setup(self):
      self.feed_input(
          self.data, self.iterator.next(), layout=self.layout
      )
  
imports: from nvidia.dali.pipeline import Pipeline
  import nvidia.dali.ops
  import nvidia.dali.types
  import numpy
  import os
  from test_utils import compare_pipelines
  from test_utils import RandomDataIterator
  from test_utils import get_dali_extra_path
label_desc: Use image node_id 3 for calling the SynthPythonFlipPipeline obj's underlying member method code with example usage: obj.iter_setup() without return types