mobx cyclic error

cyclic.js

//StoreA.js
import importedB from './StoreB'
class StoreA{
  @observable fieldA
  
  @computed get computedA(){
    return `I'm a ${this.fieldA} derived from ${importedB.computedB}`
  }
}

class StoreB{
  @observable fieldB
  @computed get computedB(){
    return require("some JSON file based on fieldB").items.importantOne
  }
}