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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 _ReceiveFetchedFile(self, tracker):
 """Remove pathspec for this index and call the ReceiveFetchedFile method."""

    index = tracker["index"]

    _, request_data = self._RemoveCompletedPathspec(index)

    # Report the request_data for this flow's caller.
    self.ReceiveFetchedFile(
        tracker["stat_entry"], tracker["hash_obj"], request_data=request_data)