pub type PFN_vkGetDescriptorSetLayoutBindingOffsetEXT = unsafe extern "system" fn(_device: Device, _layout: DescriptorSetLayout, _binding: u32, _offset: *mut DeviceSize);pub type PFN_vkGetDescriptorSetLayoutBindingOffsetEXT = unsafe extern "system" fn(_device: Device, _layout: DescriptorSetLayout, _binding: u32, _offset: *mut DeviceSize);