I'm getting an error on the webhook return;

Completed 500 Internal Server Error in 8ms (ActiveRecord: 0.5ms)

  

NoMethodError (undefined method `list_line_items' for Stripe::Checkout::Session:Class):

  

app/models/payment_received.rb:39:in `line_items'

app/models/payment_received.rb:32:in `complete_purchase'

app/models/payment_received.rb:14:in `call'

app/models/payment_received.rb:3:in `call'

config/initializers/stripe.rb:11:in `block (2 levels) in <top (required)>

 ☒ What version of the Stripe gem are you using? I  used this version in the episode

stripe (5.25.0)

From the CHANGELOG, it looks like this was added in

5.16.0 - 2020-02-26
#906 Add support for listing Checkout sessions

What if we just want guest only checkout?