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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def addressables(self):
 """Return a mapping from BuildFileAddress to thin addressable objects in this namespace. :rtype: dict from :class:`pants.build_graph.address.BuildFileAddress` to thin addressable objects. """

    return {
      BuildFileAddress(rel_path=path, target_name=name): obj
      for name, (path, obj) in self.objects_by_name.items()
    }