gistfile1.txt

{
  "$jason": {
    "head": {
      "data": {
        "members": [
                { 
                  "restaurant": "Italian",
                  "menu":[{
                      "breakfast":"burger",
                      "launch":"hotdog"
                      }
                  ]
                },
                { 
                  "restaurant": "Japan",
                  "zipcode":"94331",
                  "menu":[{
                      "launch":"burger",
                      "dinner":"hotdog"
                      }
                  ]
                },                
                
                
         ]
      },
      "templates": {
        "body": {
          "sections": [{
            "items": {
              "{{#each members}}": {
                                   "type":"vertical",                                        
                                   "style": {
                                        "padding": "10",
                                        "font": "HelveticaNeue-Bold",
                                        "size": "15"
                                   },
                                   "components": {
                                      "{{#each Object.keys(this).map(function(key){return {'key': key}; }) }}" : {
                                           "type": "label",
                                           "text": "{{key}} : {{value}}"
                                       }

                                   }
              }
            }
          }]
        }
      }
    }
  }
}