:calls: `PUT /orgs/:org/public_members/:user <http://developer.github.com/v3/orgs/members>`_
        :param public_member: :class:`github.NamedUser.NamedUser`
        :rtype: None

def add_to_public_members(self, public_member):
        """
        :calls: `PUT /orgs/:org/public_members/:user <http://developer.github.com/v3/orgs/members>`_
        :param public_member: :class:`github.NamedUser.NamedUser`
        :rtype: None
        """
        assert isinstance(public_member, github.NamedUser.NamedUser), public_member
        headers, data = self._requester.requestJsonAndCheck(
            "PUT",
            self.url + "/public_members/" + public_member._identity
        )