What is the XML rule for Group:Member Add transformation to ServiceNow sys_user_grmember?

<rule>    <description>Group:Member Add transformation to ServiceNow sys_user_grmember</description>    <comment xml:space="preserve">Group attributes in ServiceNow is distributed across two classes namely sys_user_group(name, desc) and sys_user_grmember (group, user).  The class sys_user_group contains group related attributes and class sys_user_grmember contains group-user membership attributes. This rule </comment>    <conditions>        <and>            <if-operation mode="nocase" op="equal">add</if-operation>            <if-class-name mode="nocase" op="equal">sys_user_group</if-class-name>          </and>      </conditions>    <actions>        <do-if>            <arg-conditions>                <and>                    <if-xpath op="true">./add-attr[@attr-name='urn:ietf:params:scim:schemas:core:2.0:Group:members.$ref']</if-xpath>                  </and>              </arg-conditions>            <arg-actions>                <do-clone-xpath dest-expression="./operation-data" src-expression="./add-attr[@attr-name='urn:ietf:params:scim:schemas:core:2.0:Group:members.$ref']"/>                <do-strip-op-attr name="urn:ietf:params:scim:schemas:core:2.0:Group:members.$ref"/>                <do-set-op-property name="add-grp-members">                    <arg-string>                        <token-text xml:space="preserve">true</token-text>                      </arg-string>                  </do-set-op-property>              </arg-actions>            <arg-actions/>          </do-if>      </actions>  </rule>