[Django]-Django import-export exclude not working

It seems you forgot to link the resource class with you modeladmin

class ArtResource(resources.ModelResource):

    class Meta:
        model = Art
        exclude = ('authenticate', )

    class ArtAdmin(ImportExportModelAdmin):
        resource_class = ArtResource

    list_display = ['id', 'name', 'category', 'type', 'agent', 'authenticate', ]
    search_fields = ('name', 'category', 'artist', 'id', 'authenticate', )
    list_filter = ["authenticate"]
    actions = [approve_art, reject_art]