message: docs: add comments for ts ignore
diff: @@ -164,7 +164,7 @@ describe('Logger', () => {
  const rootLogger = await Logger.root();
  $$.SANDBOX.stub(rootLogger, 'fatal');
  - // @ts-ignore
  + // @ts-ignore to access private property `lifecycle` for testing uncaughtException
  Logger.lifecycle.emit('uncaughtException', 'testException');
  expect(rootLogger.fatal['called']).to.be.true;
  });
  @@ -185,7 +185,7 @@ describe('Logger', () => {
  const childLogger = await Logger.child(childLoggerName);
  $$.SANDBOX.stub(childLogger, 'fatal');
  - // @ts-ignore
  + // @ts-ignore to access private property `lifecycle` for testing uncaughtException
  Logger.lifecycle.emit('uncaughtException', 'testException');
  expect(childLogger.fatal['called']).to.be.false;
  });
  