cancel

fun CSHasRegistrations.cancel(registration: CSRegistration): CSRegistration
@JvmName(name = "CSEventOwnerCancelNullable")
fun CSHasRegistrations.cancel(registration: CSRegistration?): Unit?
@JvmName(name = "CSEventOwnerCancelNullable")
fun CSHasRegistrations.cancel(key: String)
fun CSHasRegistrations.cancel(vararg registrations: CSRegistration?)
fun CSHasRegistrations.cancel(registrations: List<CSRegistration>?)