Global

interact('#draggable').draggable(true);

var rectables = interact('rect');
rectables
  .gesturable(true)
  .on('gesturemove', function (event) {
      // ...
  });

The methods of this variable can be used to set elements as interactables and also to change various default settings.

Calling it as a function and passing an element or a valid CSS selector string returns an Interactable object which has various methods to configure it.