Question: Create MutableObservableArray2D with custom models

[prgorasiya]

I am trying to create a MutableObservableArray2D so that I can bind it with a table view which has different sections.
I can't seem to get it right.
Here is my code:

//Properties
let upcomingTrips = MutableObservableArray2D<String, TripListModel>(Array2D())
-----

let trips = [TripListModel](JSONArray: data["result"] as! [[String : Any]])
self.upcomingTrips.value = Array2D<String, TripListModel>(sectionsWithItems: [(Dictionary(grouping: trips, by: { $0.time }))] )

First I am mapping API response to an array on objects and then grouping them according to date (string) but I cant assign it to instance of MutableObservableArray2D.

What am I doing wrong here?