pub type PFN_vkInternalAllocationNotification = extern "system" fn(_: *mut c_void, _: usize, _: InternalAllocationType, _: SystemAllocationScope) -> *mut c_void;
pub type PFN_vkInternalAllocationNotification = extern "system" fn(_: *mut c_void, _: usize, _: InternalAllocationType, _: SystemAllocationScope) -> *mut c_void;