message: Typo: initial > initialize.
diff: // Throw an exception listing the unrecognized keys.
  if (unrecognizedKeys.length > 0)
  - throw new MslInternalException("Could not initial MSL for the following unrecognized options: " + unrecognizedKeys.join(", ") + ".");
  + throw new MslInternalException("Could not initialize MSL for the following unrecognized options: " + unrecognizedKeys.join(", ") + ".");
  };
  // Export keys.
  