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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 _unpickle_collection(self, collection):
 """Unpickles all members of the specified dictionary."""

        for mkey in collection:
            if isinstance(collection[mkey], list):
                for item in collection[mkey]:
                    item.unpickle(self)
            else:
                collection[mkey].unpickle(self)