public ListUsersByPermissionGroupRequest withPermissionGroupId(String permissionGroupId) {
        setPermissionGroupId(permissionGroupId);
        return this;
    }
<p>
The unique identifier for the permission group.
</p>

@param permissionGroupId
       The unique identifier for the permission group.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-finspacedata/src/main/java/com/amazonaws/services/finspacedata/model/ListUsersByPermissionGroupRequest.java