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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 seek(self, pos):
 """Seeks the parser to the given position. """

        if self.debug:
            logging.debug('seek: %r' % pos)
        self.fp.seek(pos)
        # reset the status for nextline()
        self.bufpos = pos
        self.buf = b''
        self.charpos = 0
        # reset the status for nexttoken()
        self._parse1 = self._parse_main
        self._curtoken = b''
        self._curtokenpos = 0
        self._tokens = []
        return