No necesitar importar nada, como puedes ver en este ejemplo basico:
Código xml:
Ver original<?xml version="1.0"?>
<!-- charts/BasicColumn.mxml -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Script><![CDATA[
import mx.collections.ArrayCollection;
[Bindable]
public var expenses:ArrayCollection = new ArrayCollection([
{Month:"Jan", Profit:2000, Expenses:1500},
{Month:"Feb", Profit:1000, Expenses:200},
{Month:"Mar", Profit:1500, Expenses:500}
]);
]]></mx:Script>
<mx:Panel title="Column Chart">
<mx:ColumnChart id="myChart" dataProvider="{expenses}" showDataTips="true">
<mx:horizontalAxis>
<mx:CategoryAxis
dataProvider="{expenses}"
categoryField="Month"
/>
</mx:horizontalAxis>
<mx:series>
<mx:ColumnSeries
xField="Month"
yField="Profit"
displayName="Profit"
/>
<mx:ColumnSeries
xField="Month"
yField="Expenses"
displayName="Expenses"
/>
</mx:series>
</mx:ColumnChart>
<mx:Legend dataProvider="{myChart}"/>
</mx:Panel>
</mx:Application>