Send quick replies

Send quick replies to interlocutor.

Available on :

facebook
webchat

Attribute	Type	Required	Description
type	string	✓	always `send_quick_replies_action`
message	string	✓	message sent before the buttons (length<=500)
buttons	array<quick_reply>	✓	list of quick reply objects (1<=count<=11)
buttons.title	string	✓	button label (length <=20)
buttons.action	object<go_to_action>	✓	Action executed when button is clicked (must be a go to action)

{
   "type":"send_quick_replies_action",
   "message":"What is your favourite color ?",
   "buttons":[
      {
         "title":"Red",
         "action": {
             "type": "go_to_action",
             "target": {
                 "type":"step",
                 "id":"507f191e810c19729de860ea"
             }
         }
      }
   ]
}