How can I globally configure a subtypes error

const { type } = scope(
  {},
  {
    pattern: {
      message: (ctx) => {
        // How can I detect here that its an email vs some other pattern?
        console.log(ctx)
        return "test1"
      },
    },
  }
)

const form = type({
  email: "string.email",
})
const out = form({
  email: "bla.com",
})

if (out instanceof type.errors) {
  console.log(out.message)
}