unity-atoms/Source/Observables/ObservableUnsubscriber.cs

using System;
using System.Collections.Generic;

namespace UnityAtoms
{
    public class ObservableUnsubscriber<T> : IDisposable
    {
        private List<IObserver<T>> _observers;
        private IObserver<T> _observer;

        public ObservableUnsubscriber(List<IObserver<T>> observers, IObserver<T> observer)
        {
            this._observers = observers;
            this._observer = observer;
        }

        public void Dispose()
        {
            if (_observer != null && _observers.Contains(_observer))
            {
                _observers.Remove(_observer);
            }
        }
    }
}