- when the payments array was folded into sale_data there was an earlier payments[] reference in the foreach loop that didn't get folded in.
- Update PHPdoc
- Added ::class to remove polymorphic call warning
- Removed unreachable 'break;' statement after return statement.
- Added missing return type
- fixed missing assignment of mailchimp_api_key
- Added todo to Stock_location.php
- make library function return nullable
- Added missing model instantiation
- Commented out Sale model instantiation in library because it's causing infinite loop
- Changed function name prepending get and post required by CI4 autorouting
