Updates the specified AlertGroup object.
Access is permitted when any of the following condition(s) are met: 1. The signed-in User has any of the following permissions for the associated Organization: [org_manage_instances].
|The name of the AlertGroup|
|The users in the AlertGroup.|
|The AlertWebhooks in the AlertGroup|
|The ID of the AlertGroup to mutate.|
|A unique identifier for the client performing the mutation.|