global definitions not observable

const {observable, observe, isObservable} = require('@nx-js/observer-util'); class Counter { constructor() { this._count = 0 } increment() { this._count += 1 } decrement() { this._count -= 1 } } const c = observable(new Counter()); console.log('c', isObservable(c)); global.Counter = Counter; const c2 = observable(new Counter()); console.log('c2', isObservable(c2));