Issue summary

Accessing the arguments property on a ShopifyAPI::Event object returns a Sorbet TypeError due to a mismatch between the auto-generated type on the ShopifyAPI::Event class and what gets returned in the body of the response

• shopify_api version: 12.5.0
• Ruby version: 2.7.0
• Operating system: macOS

[43] pry(main)> event = ShopifyAPI::Event.all.first
=> #<ShopifyAPI::Event:0x0000ffff9fd8f640
 @aliased_properties={},
 @arguments=["News"],
 @author="Shopify",
 ...
[44] pry(main)> event.arguments           
TypeError: Return value: Expected type T.nilable(String), got type Array with value ["News"]

Expected behavior

ShopifyAPI::Event.all.first.arguments should return an array of arguments

Actual behavior

ShopifyAPI::Event.all.first.arguments returns a Sorbet type error: TypeError: Return value: Expected type T.nilable(String), got type Array with value ["News"]

Steps to reproduce the problem

1. retrieve an Event object through the auto-generated REST API resource class: event = ShopifyAPI::Event.all.first
2. try to access the arguments property: event.arguments