title: AWS SWF Find Child Workflow Instance / runid
body: <p>If I have created a child workflow using StartChildWorkflowExecution now in the parent workflow while handling a signal how do I find if there is any Child workflow running and if yes whats it's runid so that I can send signal or terminate the child workflow?</p>
  
  <p>I am using .Net SDK not the flow framework.</p>