storybook/docs/_snippets/storybook-addons-preset-viteFinal.md

export function ViteFinal(config, options = {}) {
  config.plugins.push(
    new MyCustomPlugin({
      someOption: true,
    }),
  );

  return config;
}

export function ViteFinal(config: any, options: any = {}) {
  config.plugins.push(
    new MyCustomPlugin({
      someOption: true,
    }),
  );

  return config;
}