chore(types)

new version of typescript and iterall don't play nice with this code

package.json

@@ -53,9 +53,9 @@
     "apollo-link-http-common": "^0.2.15",
     "apollo-utilities": "^1.3.3",
     "deprecated-decorator": "^0.1.6",
-    "extract-files": "^6.0.0",
+    "extract-files": "^7.0.0",
     "form-data": "^3.0.0",
-    "iterall": "^1.2.2",
+    "iterall": "^1.3.0",
     "node-fetch": "^2.6.0",
     "uuid": "^3.3.3"
   },
@@ -70,7 +70,7 @@
     "@types/extract-files": "^3.1.0",
     "@types/graphql-upload": "^8.0.3",
     "@types/mocha": "^5.2.7",
-    "@types/node": "^12.12.21",
+    "@types/node": "^13.1.4",
     "@types/node-fetch": "^2.5.4",
     "@types/supertest": "^2.0.8",
     "@types/uuid": "^3.4.6",
@@ -85,14 +85,14 @@
     "graphql-type-json": "^0.3.1",
     "graphql-upload": "^9.0.0",
     "istanbul": "^0.4.5",
-    "mocha": "^6.2.2",
+    "mocha": "^7.0.0",
     "prettier": "^1.19.1",
     "remap-istanbul": "0.13.0",
     "rimraf": "^3.0.0",
     "source-map-support": "^0.5.16",
     "standard-version": "^7.0.1",
     "tslint": "^5.20.1",
-    "typescript": "3.7.3",
+    "typescript": "3.7.4",
     "zen-observable-ts": "^0.8.20"
   }
 }

src/stitching/observableToAsyncIterable.ts

@@ -2,7 +2,9 @@ import { Observable } from 'apollo-link';
 import { $$asyncIterator } from 'iterall';
 type Callback = (value?: any) => any;
 
-export function observableToAsyncIterable<T>(observable: Observable<T>): AsyncIterator<T> {
+export function observableToAsyncIterable<T>(observable: Observable<T>): AsyncIterator<T> & {
+  [$$asyncIterator]: () => AsyncIterator<T>,
+} {
   const pullQueue: Callback[] = [];
   const pushQueue: any[] = [];