Table resource with Stacked avatars and it's alt or title attribute

Tables\Columns\TextColumn::make('description'),
                ImageColumn::make('users.profile_image')
                    ->defaultImageUrl( function (Training $record) {
                        $hash = md5(strtolower(trim($record->users[0]->email)));
                        return "https://www.gravatar.com/avatar/{$hash}.jpg";
                    })
                    ->circular()
                    ->stacked()
                    ->extraImgAttributes( function (Training $record) {
                        foreach ($record->users as $user) {
                            return [
                                'alt' => "{$user->name} avatar",
                                'title' => "{$user->name}",
                            ];
                        }
                    }),