chore(docs): Generated JS Client Reference (#5334)

Automated changes by [create-pull-request](https://github.com/peter-evans/create-pull-request) GitHub action

Co-authored-by: Shahed Nasser <27354907+shahednasser@users.noreply.github.com>

www/apps/docs/content/references/js-client/interfaces/internal-8.UnderlyingSinkWriteCallback.md

@@ -0,0 +1,34 @@
+---
+displayed_sidebar: jsClientSidebar
+---
+
+# Interface: UnderlyingSinkWriteCallback<W\>
+
+[internal](../modules/internal-8.md).UnderlyingSinkWriteCallback
+
+## Type parameters
+
+| Name |
+| :------ |
+| `W` |
+
+## Callable
+
+### UnderlyingSinkWriteCallback
+
+▸ **UnderlyingSinkWriteCallback**(`chunk`, `controller`): `void` \| [`PromiseLike`](internal-8.PromiseLike.md)<`void`\>
+
+#### Parameters
+
+| Name | Type |
+| :------ | :------ |
+| `chunk` | `W` |
+| `controller` | [`WritableStreamDefaultController`](../modules/internal-8.md#writablestreamdefaultcontroller) |
+
+#### Returns
+
+`void` \| [`PromiseLike`](internal-8.PromiseLike.md)<`void`\>
+
+#### Defined in
+
+packages/medusa-js/node_modules/@types/node/stream/web.d.ts:91