code: function unmarshalBuffer(json) {
    _.forEach(json, function(value, key) {
      // Null check to prevent creation of Buffer when value is null
      if (value !== null && value.type==="Buffer") {
        json[key]= new Buffer(value.data);
      }
    });
    return json;
  }
docs: Transform all selerialized Buffer value in a Buffer value inside a json object
  
  @param {json} json with serialized Buffer value.
  @return {json} json with Buffer object.