Document file content response handling

README.md

@@ -223,6 +223,16 @@ await client.files.create({
 });
 ```
 
+To retrieve uploaded file contents, use `files.content()` and consume the returned
+web standard `Response`:
+
+```ts
+const response = await client.files.content('file-abc123');
+const fileContents = await response.arrayBuffer();
+```
+
+For text files, you can use `await response.text()` instead.
+
 ## Webhook Verification
 
 Verifying webhook signatures is _optional but encouraged_.

src/resources/files.ts

@@ -120,7 +120,7 @@ export class Files extends APIResource {
 
 export type FileObjectsPage = CursorPage<FileObject>;
 
-export type FileContent = string;
+export type FileContent = Response;
 
 export interface FileDeleted {
   id: string;