class DispatchSemaphore
s8Dispatch0A9SemaphoreC
6KQC
import Dispatch
class DispatchObject
protocol Sendable
init(value: Int)
@discardableResult func signal() -> Int
func wait()
func wait(timeout: DispatchTime) -> DispatchTimeoutResult
func wait(wallTimeout: DispatchWallTime) -> DispatchTimeoutResult