displayName property
A short name or phrase used to identify the policy in dashboards, notifications, and incidents.
To avoid confusion, don't use the same display name for multiple policies in the same project. The name is limited to 512 Unicode characters.The convention for the display_name of a PrometheusQueryLanguageCondition is "{rule group name}/{alert name}", where the {rule group name} and {alert name} should be taken from the corresponding Prometheus configuration file. This convention is not enforced. In any case the display_name is not a unique key of the AlertPolicy.
Implementation
core.String? displayName;