pub type PFN_vkGetDeviceSubpassShadingMaxWorkgroupSizeHUAWEI = unsafe extern "system" fn(_device: Device, _renderpass: RenderPass, _max_workgroup_size: *mut Extent2D) -> Result;
https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetDeviceSubpassShadingMaxWorkgroupSizeHUAWEI.html