code: function(numbers) {
        var encoded = '';
  
        var numbersLength = numbers.length;
        for (var i = 0; i < numbersLength; ++i) {
          encoded += this.encodeUnsignedInteger(numbers[i]);
        }
  
        return encoded;
      }
docs: APIMethod: encodeUnsignedIntegers
  Encode a list of unsigned integers and return an encoded string
  
  Parameters:
  numbers - {Array.<number>} A list of unsigned integers.
  
  Returns:
  {string} The encoded string.