pub type PFN_vkCreateMacOSSurfaceMVK = unsafe extern "system" fn(Instance, *const MacOSSurfaceCreateInfoMVK, *const AllocationCallbacks, *mut SurfaceKHR) -> Result;pub type PFN_vkCreateMacOSSurfaceMVK = unsafe extern "system" fn(Instance, *const MacOSSurfaceCreateInfoMVK, *const AllocationCallbacks, *mut SurfaceKHR) -> Result;