public sealed class AzureFeaturePulumiAlertStack : Stack
{
    public AzureFeaturePulumiAlertStack()
    {
        var redisStackReference = new StackReference("mews-admin/Mews.Server.Environments/FeaturePulumiRedis");
        var redisId = redisStackReference.GetOutput(nameof(AzureFeaturePulumiRedisStack.RedisId));

        redisId.Apply(id => CreateMetricAlert(AzureFeaturePulumiAlerts.RedisMemoryHigh, id.ToString()).Id);
    }

    private static Pulumi.AzureNative.Insights.MetricAlert CreateMetricAlert<TResource>(MetricAlert<TResource> alert, string scopeId)
    {
        return new Pulumi.AzureNative.Insights.MetricAlert(...);
    }
}