add file

node_modules/unfetch/src/index.d.ts

@@ -0,0 +1,17 @@
+import {
+  Body as NodeBody,
+  Headers as NodeHeaders,
+  Request as NodeRequest,
+  Response as NodeResponse
+} from "node-fetch";
+
+declare namespace unfetch {
+  export type IsomorphicHeaders = Headers | NodeHeaders;
+  export type IsomorphicBody = Body | NodeBody;
+  export type IsomorphicResponse = Response | NodeResponse;
+  export type IsomorphicRequest = Request | NodeRequest
+}
+
+declare const unfetch: typeof fetch;
+
+export default unfetch;