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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 raise_for_missing_citation(self, line: str, position: int) -> None: """Raise an exception if there is no citation present in the parser. :raises: MissingCitationException """

        if self.citation_clearing and not self.citation:
            raise MissingCitationException(self.get_line_number(), line, position)