# Functions
A Session can be expired when it is in one of these statuses: open
After it expires, a customer can't complete a Session and customers loading the Session see a message saying the Session is expired.
Retrieves a Session object.
Returns a list of Checkout Sessions.
When retrieving a Checkout Session, there is an includable line_items property containing the first handful of those items.
Creates a Session object.
Updates a Session object.
# Structs
Client is used to invoke /checkout/sessions APIs.
Iter is an iterator for checkout sessions.
LineItemIter is an iterator for line items.