multiple_interface_example.as

// IMediaRenderer.as
package example 
{
    public interface IMediaRenderer extends IDataRenderer, IUsesResources, IUsesPermissions 
    {
    }
}

// MediaRenderer.as
package example 
{
    public class MediaRenderer implements IMediaRenderer 
    {
        include "IDataRendererMixin.as"
        include "IUsesResourcesMixin.as"
        include "IUsesPermissionsMixin.as"
        
        // rest of impl
    }
}

// IUsesResourcesMixin.as
import examples.Resources;
private var _resources:Resources;
public function get resources():Resources 
{
    return _resources;
}

public function set resources(value:Resources):void 
{
    _resources = value;
}

// etc.