code: function convertArray(handler) {
    return function (data) {
      if (!handler) return data || [];
      return (data || []).map(function (value) {
        return handler(value);
      });
    };
  }
docs: Create a serialization handler to run if specified.
  
  @param {ArrayConversionHandler} handler - handles the conversion of the values of an array
  @returns {ConversionMapper} - a wrapper that will iterate across the object given and pass the values to the handler