OpenIntegrations/keyboard.json

{
 "keyboard": [
  [
   {
    "text": "Button1",
    "callback_data": "Button1"
   }
  ],
  [
   {
    "text": "Button2",
    "callback_data": "Button2"
   }
  ],
  [
   {
    "text": "Button3",
    "callback_data": "Button3"
   }
  ]
 ],
 "resize_keyboard": true
}