{
  "desc": "Retrieve a permalink URL for a specific extant message.",

  "args": {
    "channel": {
      "type": "channel",
      "required": true,
      "desc": "The ID of the conversation or channel containing the message."
    },
    "message_ts": {
      "required": true,
      "example": "1405894322.002768",
      "desc": "A message's ts value, uniquely identifying it within a channel."
    }
  },

  "errors": {
    "message_not_found": "No message exists with the requested timestamp.",
    "channel_not_found": "Value passed for `channel` was invalid."
  }
}