docs: 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]