Add or remove related items from the related items tab of an incident record.
See https://www.paws-r-sdk.com/docs/ssmincidents_update_related_items/ for full documentation.
ssmincidents_update_related_items(
clientToken = NULL,
incidentRecordArn,
relatedItemsUpdate
)
A token that ensures that a client calls the operation only once with the specified details.
[required] The Amazon Resource Name (ARN) of the incident record that contains the related items that you update.
[required] Details about the item that you are add to, or delete from, an incident.