Configure LDAP groups associate with User Roles on Switch Dell S5248F-ON - SONiC Distribution v4.2.2

Hi Team,

We have Switch Dell EMC S5248F-ON installing SONiC Distribution v4.2.2 enterprise. 

This switch is planned to manage the access users by LDAP.

- group name "network-admins" for user role admin

- group name "network-view" for user role operation

In Fact, the switch connected the LDAP server successfully, and we can use LDAP users to access the switch.

However, we couldn't find any document regarding configuring LDAP groups associated with the User Roles of a switch.

Can anyone can help me for this case?