How to use BehaviorRelay as an alternate to Variable in RxSwift?

Question

As of RxSwift4, Variable is moved to Deprecated.swift marking the possible deprecation of Variable in future. An alternate proposed to

Answer 1

How about this kind of extension:

extension BehaviorRelay {

    var val: Element {
        get { value }
        set { accept(newValue) }
    }
}

Then use it as you were using the Variable, but instead of calling value, call val:

myFilter.val.append(newModel)