public function rules()
{
return ['first_name' => 'required|max:255', 'last_name' => 'required|max:255', 'address1' => 'required|max:255', 'area' => 'required|max:255', 'city' => 'required|max:255', 'country_id' => 'required', 'phone' => 'required|max:255'];
}