old_contents: # -*- coding: utf-8 -*-
  
  from .image import Image, Tile, TileBuilder, TileTopologyIterator, TileTopology, ImageWindow
  from .locator import Locator
  from .segmenter import Segmenter
  from .dispatcher import DispatchingRule, DispatcherClassifier
  from .workflow import SLDCWorkflow
  from .classifier import PolygonClassifier
  from .errors import ImageExtractionError, TileExtractionError
  from .chaining import ImageProvider, WorkflowLinker, WorkflowChain
  
  __author__ = "Romain Mormont <r.mormont@student.ulg.ac.be>"
  
  __all__ = ["Locator", "Segmenter", "DispatcherClassifier", "DispatchingRule", "SLDCWorkflow", "Image", "Tile",
             "TileBuilder", "PolygonClassifier", "TileTopology", "TileTopologyIterator", "ImageExtractionError",
             "TileExtractionError", "ImageWindow", "ImageProvider", "WorkflowLinker", "WorkflowChain"]
new_contents: # -*- coding: utf-8 -*-
  
  from .image import Image, Tile, TileBuilder, TileTopologyIterator, TileTopology, ImageWindow
  from .locator import Locator
  from .segmenter import Segmenter
  from .dispatcher import DispatchingRule, DispatcherClassifier
  from .workflow import SLDCWorkflow
  from .classifier import PolygonClassifier
  from .errors import ImageExtractionError, TileExtractionError
  from .chaining import ImageProvider, WorkflowLinker, WorkflowChain, PostProcessor
  
  __author__ = "Romain Mormont <r.mormont@student.ulg.ac.be>"
  
  __all__ = ["Locator", "Segmenter", "DispatcherClassifier", "DispatchingRule", "SLDCWorkflow", "Image", "Tile",
             "TileBuilder", "PolygonClassifier", "TileTopology", "TileTopologyIterator", "ImageExtractionError",
             "TileExtractionError", "ImageWindow", "ImageProvider", "WorkflowLinker", "WorkflowChain", "PostProcessor"]
subject: add post processor to __init__