mutation GalleryChapterCreate(
  $title: String!
  $image_index: Int!
  $gallery_id: ID!
) {
  galleryChapterCreate(
    input: { title: $title, image_index: $image_index, gallery_id: $gallery_id }
  ) {
    ...GalleryChapterData
  }
}

mutation GalleryChapterUpdate(
  $id: ID!
  $title: String!
  $image_index: Int!
  $gallery_id: ID!
) {
  galleryChapterUpdate(
    input: {
      id: $id
      title: $title
      image_index: $image_index
      gallery_id: $gallery_id
    }
  ) {
    ...GalleryChapterData
  }
}

mutation GalleryChapterDestroy($id: ID!) {
  galleryChapterDestroy(id: $id)
}