/**
* @param Io|null $fillFromIo
* @return State
* @return static
*/
public static function createState(Io $fillFromIo = null)
{
$commandClass = get_called_class();
/** @var State $state */
$state = null;
if ($fillFromIo !== null) {
$state = $fillFromIo->getRequestState($commandClass);
if (!$state) {
$state = new State();
}
$state->setIo($fillFromIo);
} else {
$state = new State();
}
$state->commandClass = $commandClass;
return $state;
}
