1 files changed, 27 insertions, 0 deletions
diff --git a/op_crates/fetch/internal.d.ts b/op_crates/fetch/internal.d.ts
new file mode 100644
index 000000000..e02bc6ed2
--- /dev/null
+++ b/op_crates/fetch/internal.d.ts
@@ -0,0 +1,27 @@
+// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
+
+// deno-lint-ignore-file no-explicit-any
+
+/// <reference no-default-lib="true" />
+/// <reference lib="esnext" />
+
+declare namespace globalThis {
+  declare namespace __bootstrap {
+    declare var fetchUtil: {
+      requiredArguments(name: string, length: number, required: number): void;
+    };
+
+    declare var domIterable: {
+      DomIterableMixin(base: any, dataSymbol: symbol): any;
+    };
+
+    declare var headers: {
+      Headers: typeof Headers;
+    };
+
+    declare var streams: {
+      ReadableStream: typeof ReadableStream;
+      isReadableStreamDisturbed(stream: ReadableStream): boolean;
+    };
+  }
+}