pub type PFN_vkCreateDebugUtilsMessengerEXT = unsafe extern "system" fn(instance: Instance, p_create_info: *const DebugUtilsMessengerCreateInfoEXT, p_allocator: *const AllocationCallbacks, p_messenger: *mut DebugUtilsMessengerEXT) -> Result;
pub type PFN_vkCreateDebugUtilsMessengerEXT = unsafe extern "system" fn(instance: Instance, p_create_info: *const DebugUtilsMessengerCreateInfoEXT, p_allocator: *const AllocationCallbacks, p_messenger: *mut DebugUtilsMessengerEXT) -> Result;