def ldap_server_definitions(self):
        """
        :class:`~zhmcclient.LdapServerDefinitionManager`: Access to the
        :term:`LDAP Server Definitions <LDAP Server Definition>` in this
        Console.
        """
        # We do here some lazy loading.
        if not self._ldap_server_definitions:
            self._ldap_server_definitions = LdapServerDefinitionManager(self)
        return self._ldap_server_definitions