Function end_block_exec 

pub fn end_block_exec<CallbackFn>(
    callback: CallbackFn,
) -> HookBuilder<extern "C" fn(env: &mut CPUState, tb: &mut TranslationBlock, hook: &mut Hook)>
where
    CallbackFn: FnMut(&mut CPUState, &mut TranslationBlock, &mut Hook) + 'static,