I want to put verbose_name_plural here, doesn't it work?

[aMstr0]

class GalleryInlines(NonrelatedTabularInline):
model = Gallery
tab = True
extra = 0
can_delete = False
fields = ["image", "status",
"is_deleted", "caption",
"created_at"]

readonly_fields = ["image", "status", 
        "is_deleted", "caption", 
        "created_at"]

def get_form_queryset(self, obj):
    return self.model.objects.filter(salon=obj.salon)

def save_new_instance(self, parent, instance):
    pass

class Meta:
    verbose_name = "نمونه کار"
    verbose_name_plural = "نمونه کار ها"