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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 parseString(self, line: str, line_number: int = 0) -> ParseResults: # noqa: N802 """Parse a string with the language represented by this parser. :param line: A string representing an instance of this parser's language :param line_number: The current line number of the parser """

        self._line_number = line_number
        return self.language.parseString(line)