title: List instances in auto scaling group with boto
body: <p>I want to list all instances that are currently running within a auto scaling group. Can that be accomplished with boto?</p>
  
  <p>There must be some relation between the ASG and the instances as boto has the <code>shutdown_instances</code> method within the <code>boto.ec2.autoscale.group.AutoScalingGroup</code> class.</p>
  
  <p>Any pointers in the right direction is highly appreciated!</p>