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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 _get_min_addr(self):
 """ Get the minimum address out of all regions. We assume self._regions is sorted. :return: The minimum address. :rtype: int """


        if not self._regions:
            if self.project.arch.name != "Soot":
                l.error("self._regions is empty or not properly set.")
            return None

        return next(self._regions.irange())