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hello, im trying to add `autoScalingGroupTags` to my nodegroups where the key of a tag has a string substitution but i'm hitting a yaml formatting error. Code sample in thread

here's what i've got
```autoScalingGroupTags: {
                [`<http://kubernetes.io/cluster/${clusterName}`|kubernetes.io/cluster/${clusterName}`>]: "",
                "<http://k8s.io/cluster-autoscaler/enabled|k8s.io/cluster-autoscaler/enabled>": "",
}```

and im hitting a YAML formatting error when I `pulumi up`

```Plan apply failed: Creating CloudFormation stack failed: ValidationError: Template format error: YAML not well-formed. (line 51, column 1)```

how do i set a key in this dict with a string substitution?

I opened <https://github.com/pulumi/pulumi-kubernetes/issues/584>. To check, are you intentionally passing an empty string as the value for these?

Awesome, thanks. I am intentionally, passing in an empty string for a value. For context, I'm wanting to install this helm chart <https://github.com/helm/charts/tree/master/stable/aws-cluster-autoscaler>

It only requires that these keys are set properly

quick note -  it appears that cloudformation doesn't support empty strings/null values. but even with setting a value, i still hit the yaml templating error

Great - thanks - mind dropping a note on that on the issue so we can investigate?

The tag issue is fixed in 0.18.4 of the `aws` package.