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"
          ]
        }
      ]
    }
  }
}
