Gets the details of the permission set.
See https://www.paws-r-sdk.com/docs/ssoadmin_describe_permission_set/ for full documentation.
ssoadmin_describe_permission_set(InstanceArn, PermissionSetArn)
[required] The ARN of the IAM Identity Center instance under which the operation will be executed. For more information about ARNs, see Amazon Resource Names (ARNs) and Amazon Web Services Service Namespaces in the Amazon Web Services General Reference.
[required] The ARN of the permission set.