///| extern "c" fn uv_hrtime() -> UInt64 = "uv_hrtime" ///| pub fn hrtime() -> UInt64 { uv_hrtime() } ///| extern "c" fn uv_sleep(milliseconds : UInt64) = "uv_sleep" ///| pub fn sleep(milliseconds : UInt64) -> Unit { uv_sleep(milliseconds) }