var_dump($t=new Timestamp(Timestamp\Precision::Day, datetime:$full),(string)$t);
var_dump($t=new Timestamp(Timestamp\Precision::Day->value, datetime:$full),(string)$t);
var_dump($t=new Timestamp(Timestamp\Precision::Min, datetime:"2020-10-01"),(string)$t);
var_dump($t=new Timestamp(Timestamp\Precision::Day, datetime:$full),(string)$t);
var_dump($t=new Timestamp(Timestamp\Precision::Day->value, datetime:$full),(string)$t);
var_dump($t=new Timestamp(Timestamp\Precision::Min, datetime:"2020-10-01"),(string)$t);