@property<EOL><INDENT>def ipv4_mapped(self):<DEDENT>
if (self._ip >> <NUM_LIT:32>) != <NUM_LIT>:<EOL><INDENT>return None<EOL><DEDENT>return IPv4Address(self._ip & <NUM_LIT>)<EOL>
Return the IPv4 mapped address.

        Returns:
            If the IPv6 address is a v4 mapped address, return the
            IPv4 mapped address. Return None otherwise.