mutation nested_author_insert {
      insert_author(
        objects: [
          {
            name: "Author 3", 
            articles: {
              data: [
                {
                  title: "An article by author 3", 
                  content: "Content for article by author 3", 
                  is_published: false
                }
              ]
            }
          }
        ]
      ) {
        affected_rows
        returning {
          id
          name
          articles {
            id
          }
        }
      }
   }

   mutation article_author{
     insert_article(
       objects: [
         {
           title: "Article by author 4",
           content: "Article content for article by author 4",
           is_published: true
           author: {
             data: {
               name: "Article 4"
             }
           }
         },
         {
           title: "Article by author 5",
           content: "Article content for article by author 5",
           is_published: true
           author: {
             data: {
               name: "Article 5"
             }
           }
         }
       ]
     ){
       affected_rows
       returning{
         id
         title
         content
         author{
           id
           name
         }
       }
     }
   }