Contextual closure type '() -> ()' expects 0 arguments, but 1 was used in closure body

[ghost]

    PingManager.shared.setup {
        $0.timeout = timeout
        $0.pingPeriod = period
        $0.startPing()
    }
    
    编辑器提示如上错误，闭包不能用，swift 5.0 xcode 12.3