<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _maybe_normalize(self, var):
 """normalize variant if requested, and ignore HGVSUnsupportedOperationError This is better than checking whether the variant is intronic because future UTAs will support LRG, which will enable checking intronic variants. """

        if self.normalize:
            try:
                return self._norm.normalize(var)
            except HGVSUnsupportedOperationError as e:
                _logger.warning(str(e) + "; returning unnormalized variant")
                # fall through to return unnormalized variant
        return var