doc: update process.send() signature
This commit brings the process.send() signature into sync with the child_process.send() documentation. Specifically, this commit adds the callback argument and return type to the docs.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
This commit brings the process.send() signature into sync with the child_process.send() documentation. Specifically, this commit adds the callback argument and return type to the docs.