Inject inject any class, which both created by combineStore. 1import { inject, combineStore } from "dob" Usage1234567891011121314151617class A { value = 5}class B { @inject(A) a showValue() { return this.a.value }}const stores = combineStore({A, B})console.log(stores.B.showValue()) // 5stores.A.value = 6console.log(stores.B.showValue()) // 6