//от сервера
//use pocketmine\command\ConsoleCommandSender;
Server::getInstance()->dispatch(new ConsoleCommandSender(), "test ".$username);
//от игрока
Server::getInstance()->dispatch($player, "test ".$username);
//от сервера
//use pocketmine\command\ConsoleCommandSender;
Server::getInstance()->dispatch(new ConsoleCommandSender(), "test ".$username);
//от игрока
Server::getInstance()->dispatch($player, "test ".$username);