Types: patch return type doesn't include the possibility of undefined

[ArthurHoaro]

Small TypeScript typing issue: resouce.patch() is typed to return a resource, while it can return undefined if nothing was updated.

Expected Behavior

Return type of resource.patch(...) is <resource> | undefined.

Actual Behavior

Return type of resource.patch(...) is <resource>.

Steps To Reproduce

In a TS project, call

  import { default as SCIMMY, type Messages } from 'scimmy';

  const user = await new SCIMMY.Resources.User().patch(
    {} as unknown as Messages.PatchOp,
    context,
  );

and check user type.