How can I use Shopify.Session.PostgreSQLSessionStorage correctly?

hello, I have not been able to use new Shopify.Session.PostgreSQLSessionStorage, can someone give me a hint. I started like this but it doesn’t work

SESSION_STORAGE: new Shopify.Session.PostgreSQLSessionStorage(
      new URL(process.env.DATABASE_URL)
  )

I think they recently pushed it to npm. It was only on github before. Make sure you have updated your @Shopify_77 /shopify-api.