code: def start_bundle(self):
      self._samples = []
  
imports: import logging
  import numpy
  import fiftyone.core.dataset
  import fiftyone.core.utils
  import fiftyone.core.view
  import apache_beam
  from apache_beam.options.pipeline_options import PipelineOptions
label_desc: Use image node_id 3 for calling the MergeBatch obj's underlying member method code with example usage: obj.start_bundle() without return types