pub type PFN_vkLayerDestroyDevice = unsafe extern "system" fn(_device: Device, _allocator: *const AllocationCallbacks, _destroy_function: PFN_vkDestroyDevice) -> Result;pub type PFN_vkLayerDestroyDevice = unsafe extern "system" fn(_device: Device, _allocator: *const AllocationCallbacks, _destroy_function: PFN_vkDestroyDevice) -> Result;