observable import seems wrong

[gerhardavon]

Hi! 👋

Firstly, thanks for your work on this project! 🙂

Today I used patch-package to patch [email protected] for the project I'm working on.

When importing the Observable from apollo client 3.5.9 it gave an error. import ZenObservable from 'zen-observable-ts'; seems to fix it.

Here is the diff that solved my problem:

diff --git a/node_modules/aws-appsync-subscription-link/lib/subscription-handshake-link.d.ts b/node_modules/aws-appsync-subscription-link/lib/subscription-handshake-link.d.ts
index 4bbf02f..449b33b 100644
--- a/node_modules/aws-appsync-subscription-link/lib/subscription-handshake-link.d.ts
+++ b/node_modules/aws-appsync-subscription-link/lib/subscription-handshake-link.d.ts
@@ -3,6 +3,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 import { ApolloLink, Observable, Operation, FetchResult } from "@apollo/client/core";
+import ZenObservable from 'zen-observable-ts';
 declare type MqttConnectionInfo = {
     client: string;
     url: string;
diff --git a/node_modules/aws-appsync-subscription-link/lib/types/index.d.ts b/node_modules/aws-appsync-subscription-link/lib/types/index.d.ts
index 9ee49bc..70bebec 100644
--- a/node_modules/aws-appsync-subscription-link/lib/types/index.d.ts
+++ b/node_modules/aws-appsync-subscription-link/lib/types/index.d.ts
@@ -1,4 +1,5 @@
 import { AuthOptions } from "aws-appsync-auth-link";
+import ZenObservable from 'zen-observable-ts';
 export declare enum SUBSCRIPTION_STATUS {
     PENDING = 0,
     CONNECTED = 1,

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