@cycle/storage is not typed like a Driver

index.ts

import xs,{Stream} from 'xstream'
import {run} from '@cycle/run'
import {DOMSource, makeDOMDriver, VNode} from '@cycle/dom'
import storageDriver,{StorageSource,StorageRequest} from '@cycle/storage'

export type Sources = {
  DOM : DOMSource;
  storage: StorageSource;
}

export type Sinks = {
  DOM : Stream<VNode>;
  storage: Stream<StorageRequest>;
}

function main(sources: Sources): Sinks {
  return {
    DOM: xs.empty(),
    storage: xs.empty()
  }
}

const drivers = {
  DOM: makeDOMDriver('#root'),
  storage: storageDriver
}

/* Argument of type '{ DOM: Driver<Stream<VNode>, MainDOMSource>; storage: (request$: Stream<StorageRequest>) => Respo...'
 * is not assignable to parameter of type 'Drivers<Sources, Sinks>'.
 * Types of property 'storage' are incompatible.
 * Type '(request$: Stream<StorageRequest>) => ResponseCollection' is not assignable to type
 * 'Driver<Stream<StorageRequest>, StorageSource>'.
 * Type 'ResponseCollection' is not assignable to type 'StorageSource'.
 * Property 'key' is missing in type 'ResponseCollection'.
 */
run(main, drivers)

package.json

{
  "name": "storage-test",
  "version": "0.1.0",
  "devDependencies": {
    "cycle-scripts": "2.1.0"
  },
  "dependencies": {
    "@cycle/dom": "^20",
    "@cycle/run": "^4",
    "@cycle/storage": "^5",
    "awesome-typescript-loader": "3.2.3",
    "typescript": "2.5.3",
    "xstream": "11.0.0"
  },
  "scripts": {
    "start": "cycle-scripts start",
    "test": "cycle-scripts test",
    "build": "cycle-scripts build",
    "eject": "cycle-scripts eject"
  },
  "cca": {
    "language": "typescript",
    "streamLib": "xstream"
  }
}