<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _inside_regions(self, address):
 """ Check if the address is inside any existing region. :param int address: Address to check. :return: True if the address is within one of the memory regions, False otherwise. :rtype: bool """


        try:
            start_addr = next(self._regions.irange(maximum=address, reverse=True))
        except StopIteration:
            return False
        else:
            return address < self._regions[start_addr]