message: Pass operation to createSubscription (oops)
diff: @@ -3,13 +3,15 @@ import Observable from 'zen-observable-ts';
  import {
  IExchange,
  IExchangeResult,
  + IOperation,
  ISubscription,
  ISubscriptionObserver,
  } from '../interfaces/index';
  +
  import { CombinedError } from './error';
  export const subscriptionExchange = (
  - createSubscription: (ISubscriptionObserver) => ISubscription,
  + createSubscription: (IOperation, ISubscriptionObserver) => ISubscription,
  forward: IExchange
  ): IExchange => {
  return operation => {
  @@ -36,7 +38,7 @@ export const subscriptionExchange = (
  },
  };
  - const sub = createSubscription(subObserver);
  + const sub = createSubscription(operation, subObserver);
  return () => {
  sub.unsubscribe();
  