pub type PFN_vkCreateDebugUtilsMessengerEXT = unsafe extern "system" fn(Instance, *const DebugUtilsMessengerCreateInfoEXT<'_>, *const AllocationCallbacks<'_>, *mut DebugUtilsMessengerEXT) -> Result;pub type PFN_vkCreateDebugUtilsMessengerEXT = unsafe extern "system" fn(Instance, *const DebugUtilsMessengerCreateInfoEXT<'_>, *const AllocationCallbacks<'_>, *mut DebugUtilsMessengerEXT) -> Result;