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.UnderlyingSource.md

@@ -0,0 +1,53 @@
+---
+displayed_sidebar: jsClientSidebar
+---
+
+# Interface: UnderlyingSource<R\>
+
+[internal](../modules/internal-8.md).UnderlyingSource
+
+## Type parameters
+
+| Name | Type |
+| :------ | :------ |
+| `R` | `any` |
+
+## Properties
+
+### cancel
+
+• `Optional` **cancel**: [`UnderlyingSourceCancelCallback`](internal-8.UnderlyingSourceCancelCallback.md)
+
+#### Defined in
+
+packages/medusa-js/node_modules/@types/node/stream/web.d.ts:119
+
+___
+
+### pull
+
+• `Optional` **pull**: [`UnderlyingSourcePullCallback`](internal-8.UnderlyingSourcePullCallback.md)<`R`\>
+
+#### Defined in
+
+packages/medusa-js/node_modules/@types/node/stream/web.d.ts:120
+
+___
+
+### start
+
+• `Optional` **start**: [`UnderlyingSourceStartCallback`](internal-8.UnderlyingSourceStartCallback.md)<`R`\>
+
+#### Defined in
+
+packages/medusa-js/node_modules/@types/node/stream/web.d.ts:121
+
+___
+
+### type
+
+• `Optional` **type**: `undefined`
+
+#### Defined in
+
+packages/medusa-js/node_modules/@types/node/stream/web.d.ts:122