pub type PFN_vkGetDeviceImageSubresourceLayout = unsafe extern "system" fn(_device: Device, _info: *const DeviceImageSubresourceInfo, _layout: *mut SubresourceLayout2);pub type PFN_vkGetDeviceImageSubresourceLayout = unsafe extern "system" fn(_device: Device, _info: *const DeviceImageSubresourceInfo, _layout: *mut SubresourceLayout2);