code: def _apply_single(self, data, meta):
      return data
  
file_path: calamari/calamari_ocr/ocr/dataset/imageprocessors/data_preprocessor.py
imports: from abc import ABC, abstractmethod
  from tfaip.data.pipeline.definitions import Sample
  from tfaip.data.pipeline.processor.dataprocessor import MappingDataProcessor, T
  import logging
label_desc: Use image node_id 3 for calling the ImageProcessor obj's underlying member method code with example usage: obj._apply_single(data, meta) and returns: data