begin.raml

#%RAML 0.8
title: New API
version: v1
baseUri: http://api.samplehost.com
/helloWorld:
  get:
    protocols: 
      - HTTP
      - HTTPS
responses:
      200:
        body:
          application/json:
            example: |
              {
                "message" : "Hello World"
              }

end.raml

#%RAML 0.8
title: New API
version: v1
baseUri: http://api.samplehost.com
/helloWorld:
  get:
    protocols: 
    
      - HTTP
      - HTTPS
      - HUE
responses:
      200:
        body:
          application/json:
            example: |
              {
                "message" : "Hello World"
              }
           }
   }
           }

process.ts

node.attributes(name).forEach(attr => attr.remove());
['HTTP', 'HTTPS', 'HUE'].forEach(val => node.attrOrCreate(name).addValue(val));
console.log(node.attributes(name).length) // 4