Why are some functions defined as undefined in the Yandex.Maps API?

Question

API

Hello.
Created a map based on Yandex.API, everything worked perfectly and correctly. There was a need to create a curve on it, and then oddities began. In the code below (from the point of view of the documentation, everything is fully consistent with the rules), alert will return "undefined function", although it should return "function function".

<script type="text/javascript">
    var map;

    function _yst(ymaps) {
    ymaps.ready(function(){

  alert(typeof ymaps.Polyline + ' ' + typeof ymaps.Placemark); // undefined function
        map = new ymaps.Map(document.getElementById('map-wrapper'), {
           // ...
        });

    	var myGeoObject = new ymaps.Placemark([33, 34], {
            balloonShadow: false
    	}, {
    		// ...
    	});
    	
    	map.geoObjects.add(myGeoObject); 
    });
}
</script>
<script src="http://api-maps.yandex.ru/2.0-stable/?load=package.standard&lang=ru-RU&onload=_yst" type="text/javascript"></script>

Accordingly, an attempt to create a line ends with an error about a non-existent method. I don't know where to dig - after all, a map and a label are being created. I would be grateful for advice, thanks.

Answer 1

There is no Polyline in the "standard" package, connect the required package or "full"
Packages