Perform a parallel loop

  main 
 : 
  
 params 
 : 
  
 [ 
 input 
 ] 
  
 steps 
 : 
  
 - 
  
 sendNotifications 
 : 
  
 parallel 
 : 
  
 for 
 : 
  
 value 
 : 
  
 notification 
  
 in 
 : 
  
 ${input.notifications} 
  
 steps 
 : 
  
 - 
  
 notify 
 : 
  
 call 
 : 
  
 http.post 
  
 args 
 : 
  
 url 
 : 
  
 https://example.com/sendNotification 
  
 body 
 : 
  
 notification 
 : 
  
 ${notification}