code: def is_address_here(self, address):
          
          base = self.get_base()
          size = self.get_size()
          if base and size:
              return base <= address < (base + size)
          return None
docs: Tries to determine if the given address belongs to this module.
  
          @type  address: int
          @param address: Memory address.
  
          @rtype:  bool or None
          @return: C{True} if the address belongs to the module,
              C{False} if it doesn't,
              and C{None} if it can't be determined.