1{"Put":{"state":"helˇlo world."}}
 2{"Key":"i"}
 3{"Key":"ctrl-o"}
 4{"Key":"d"}
 5{"Key":"i"}
 6{"Key":"w"}
 7{"Get":{"state":"ˇ world.","mode":"Insert"}}
 8{"Key":"ctrl-o"}
 9{"Key":"p"}
10{"Get":{"state":" helloˇworld.","mode":"Insert"}}