def pair(self):
allow = Permissions.none()<EOL>deny = Permissions.none()<EOL>for key, value in self._values.items():<EOL><INDENT>if value is True:<EOL><INDENT>setattr(allow, key, True)<EOL><DEDENT>elif value is False:<EOL><INDENT>setattr(deny, key, True)<EOL><DEDENT><DEDENT>return allow, deny<EOL>
Returns the (allow, deny) pair from this overwrite.

        The value of these pairs is :class:`Permissions`.