An opaque handle that can be used to cancel a scheduled callback.
struct NIOScheduledCallbackUsers should not create an instance of this type; it is returned by EventLoop.scheduleCallback(at:handler:).
import NIOCoreThe core abstractions that make up SwiftNIO.
protocol Sendableinit(_ eventLoop: any EventLoop, id: UInt64) Create a handle for the scheduled callback with an opaque identifier managed by the event loop.
var customCallbackID: UInt64? { get }The callback identifier, if the event loop uses a custom scheduled callback implementation; nil otherwise.
func cancel() Cancel the scheduled callback associated with this handle.