General
The <import> element, the <vars> element, and the <screen> element are the three primary structural elements that occur inside the <HAScript> element (see Conceptual view of a macro script).
The <import> element is optional. It contains <type> elements each of which declares an imported type based on a Java class (see Creating an imported type for a Java class).
The <import> element must occur after the <HAScript> begin tag and before the <vars> element.