slackbot_response message variant

Author: dten

objects/message.json

@@ -1382,6 +1382,30 @@
         }
       },
       "title": "sh_room_created"
+    },
+    {
+      "type": "object",
+      "properties": {
+        "type": {
+          "type": "string"
+        },
+        "subtype": {
+          "type": "string"
+        },
+        "user": {
+          "type": "string"
+        },
+        "text": {
+          "type": "string"
+        },
+        "channel": {
+          "type": "string"
+        },
+        "ts": {
+          "$ref": "timestamp.json"
+        }
+      },
+      "title": "slackbot_response"
     }
   ]
 }