columns: login: label: backend::lang.user.login searchable: true sortable: true first_name: label: backend::lang.user.first_name searchable: true sortable: true last_name: label: backend::lang.user.last_name searchable: true sortable: true email: label: backend::lang.user.email searchable: true sortable: true role: label: backend::lang.user.role_field relation: role select: name sortable: true last_login: label: backend::lang.user.last_login type: datetime sortable: true is_superuser: label: backend::lang.user.superuser type: switch created_at: label: backend::lang.user.created_at type: datetime invisible: true sortable: true