pub type PFN_vkCopyImageToMemory = unsafe extern "system" fn(_device: Device, _copy_image_to_memory_info: *const CopyImageToMemoryInfo) -> Result;pub type PFN_vkCopyImageToMemory = unsafe extern "system" fn(_device: Device, _copy_image_to_memory_info: *const CopyImageToMemoryInfo) -> Result;