https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-properties-ssmincidents-responseplan-dynamicssmparameter.html
AWS::SSMIncidents::ResponsePlan DynamicSsmParameter - AWS CloudFormation
Use the CloudFormation AWS::SSMIncidents::ResponsePlan.DynamicSsmParameter resource for SSMIncidents.
awsssmincidentscloudformation