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my requirements.txt file has
```pulumi==3.46.0
pulumi-gcp==6.41.0
pulumi-google-native==0.27.0
pulumi-aws==5.9.0
pulumi-eks==0.40.0
pulumi-kubernetes==3.18.1
pulumi-kubernetes-coredns==0.0.2
pulumi_random==4.11.2```

looks like you’re passing the wrong type to `metrics`

`metrics` needs a list as per the error message
I am passing `[coredns_memory_metric_spec, coredns_cpu_metric_spec]` which is a list of `MetricSpecArgs` class objects