Magic link with registration does not work.

    read :sign_in_with_magic_link do
      description "Sign in or register a user with magic link."

      argument :token, :string do
        description "The token from the magic link that was sent to the user"
        allow_nil? false
      end

      # upsert? true
      # upsert_identity :unique_email
      # upsert_fields [:email]

      # Uses the information from the token to create or sign in the user
      # change AshAuthentication.Strategy.MagicLink.SignInChange
      prepare AshAuthentication.Strategy.MagicLink.SignInPreparation

      metadata :token, :string do
        allow_nil? false
      end
    end

    create :sign_in_with_magic_link do
      description "Sign in or register a user with magic link."

      argument :token, :string do
        description "The token from the magic link that was sent to the user"
        allow_nil? false
      end

      upsert? true
      upsert_identity :unique_email
      upsert_fields [:email]

      # Uses the information from the token to create or sign in the user
      change AshAuthentication.Strategy.MagicLink.SignInChange

      metadata :token, :string do
        allow_nil? false
      end
    end