new_obj.to_string()={
  "glossary":{
    "title":"example glossary",
    "GlossDiv":{
      "title":"S",
      "GlossList":[
        {
          "ID":"SGML",
          "SortAs":"SGML",
          "GlossTerm":"Standard Generalized Markup Language",
          "Acronym":"SGML",
          "Abbrev":"ISO 8879:1986",
          "GlossDef":"A meta-markup language, used to create markup languages such as DocBook.",
          "GlossSeeAlso":[
            "GML",
            "XML",
            "markup"
          ]
        }
      ]
    }
  }
}