The Tenants to associate with the Stamp. Do not specify any value for this parameter if you wish to leave the Tenants associated ...

The Tenants to associate with the Stamp.  Do not specify any value for this parameter if you wish to leave the Tenants associated with this Stamp unmodified.  Specify an empty collection if you wish to not associate any Tenants with this Stamp.  Otherwise, specify the collection of Tenants to associate with this Stamp.