$builder->add('image', FileType::class, [
                'label' => 'Image',
                'attr' => ['accept' => 'image/jpeg, image/png, image/webp'],
                'constraints' => [
                    new Assert\NotBlank(['message' => 'E_banner_07']),
                    new File([
                        'mimeTypes' => ['image/jpeg', 'image/png', 'image/webp'],
                        'mimeTypesMessage' => 'E_banner_08',
                        'maxSize' => '5M',
                        'maxSizeMessage' => 'E_banner_09',
                    ]),
                    new Image([
                        'maxWidth' => 800,
                        'maxHeight' => 800,
                        'maxWidthMessage' => 'バナー画像は縦800px,横800px以内の画像を選択してください。',
                        'maxHeightMessage' => 'バナー画像は縦800px,横800px以内の画像を選択してください。',
                    ]),
                ],
            ])