How to observe calendar changes by using NotificationCenter.messages(of: for:)?

Overview

• I would like to observe calendar changes using NotificationCenter.messages(of: for:)
• I want receive Sendable messages, not traditional Notification which is not Sendable

Problem

• I can't seem to get the following code to compile

import EventKit

NotificationCenter.default.messages(
    of: EKEventStore.EventStoreChanged.Subject.self,
    for: .changed
)

Reference

• https://developer.apple.com/documentation/foundation/notificationcenter/messageidentifier/changed-50yz5

Questions

• How can I use by using NotificationCenter.messages(of: for:) for Calendar changes?