A spoke is a scoped application that contains flow actions that can be used in Flow Designer. Spokes allow developers to create reusable actions that can be shared across applications and instances.
References:
* Spokes - Product Documentation: San Diego - ServiceNow
* Create a spoke - Product Documentation: San Diego - ServiceNow
* Flow Designer Spokes - ServiceNow Developers

Explanation/Reference: https://docs.servicenow.com/bundle/orlando-application-development/page/build/applications/task/ set-RCA-level.html

The statement that is true for this script fragment is that the method returns true if the currently logged in user has the x_my_app_user role or the admin role. The g_user.hasRole() method is a client-side method that checks whether the current user has a specified role or set of roles. If no role is specified, it returns true if the user has any role. If one or more roles are specified, it returns true if the user has any one of the specified roles. However, this method always returns true if the user has the admin role, regardless of the role parameter. Therefore, in this case, the method returns true if the user has either the x_my_app_user role or the admin role. Reference: User Object Cheat Sheet, Checking user permissions

Explanation/Reference: https://docs.servicenow.com/bundle/orlando-application-development/page/build/applications/task/ t_LinkAnApplicationToSourceControl.html