Context

We have a delay() utility function that we use in testing to trigger a long-running operation on the server.
We should do the following to make it more discoverable and easy to use:

• Add a docstring with an example, calling out that you need to add a document to the collection or the server may decide not to sleep at all.
• Add a note in the contributing guide pointing out the function's existence and when you might want to use it.

Definition of done

Update the docstring and the contributing guide.

Pitfalls

None