pub type PFN_vkWaitForPresent2KHR = unsafe extern "system" fn(_device: Device, _swapchain: SwapchainKHR, _present_wait2_info: *const PresentWait2InfoKHR) -> Result;pub type PFN_vkWaitForPresent2KHR = unsafe extern "system" fn(_device: Device, _swapchain: SwapchainKHR, _present_wait2_info: *const PresentWait2InfoKHR) -> Result;