How do I write TS declaration of async store creator?

[hindmost]

I have some Redux wrapper written in regular JS. This is a factory function that receives the base Redux's createStore and returns async store creator - function returning a promise to be resolved to createStore substitute (that uses real createStore under the hood). I'd like to make Typescript declaration for this wrapper. I already written declaration of the factory function using StoreCreator interface from the Redux typings:

import {
  StoreCreator,
} from 'redux';

function factory(obj: {
  createStore: StoreCreator,
  otherParams: ...,
}): AsyncStoreCreator;

But I'm not sure how to declare AsyncStoreCreator interface.
Can I use the same Redux's StoreCreator interface as a sample? I've tried to copy-paste the respective code from the Redux repo and wrap the return type with Promise. Below is how it looks:

import {
  Action,
  Reducer,
  Store,
  PreloadedState,
  StoreCreator,
  StoreEnhancer,
} from 'redux';

type ExtendState<State, Extension> = [Extension] extends [never]
  ? State
  : State & Extension;

interface AsyncStoreCreator {
  <S, A extends Action, Ext = {}, StateExt = never>(
    reducer: Reducer<S, A>,
    enhancer?: StoreEnhancer<Ext, StateExt>
  ): Promise<Store<ExtendState<S, StateExt>, A, StateExt, Ext> & Ext>
  <S, A extends Action, Ext = {}, StateExt = never>(
    reducer: Reducer<S, A>,
    preloadedState?: PreloadedState<S>,
    enhancer?: StoreEnhancer<Ext>
  ): Promise<Store<ExtendState<S, StateExt>, A, StateExt, Ext> & Ext>
}

But I'm not sure if this is right way.