Terraform Helm set tolerations

Question

I'm trying to set tolerations values in Terraform Helm for the occm chart in the following way:

set {
  name = "tolerations"
  value = yamlencode([
    {
      key    = "node.kubernetes.io/test"
      value  = "true"
      effect = "NoSchedule"
    }
  ])
}

And it fails with the following error:

... invalid type for io.k8s.api.core.v1.PodSpec.tolerations: got "string", expected "array"

I tried also with:

set_list {
  name = "tolerations"
  value = [
    yamlencode({
      key    = "node.kubernetes.io/test"
      value  = "true"
      effect = "NoSchedule"
    })
  ]
}

But I get:

... invalid type for io.k8s.api.core.v1.Toleration: got "string", expected "map"

Now I looked to this StackOverflow post, but they use different methods. Is there a way to make it work with set or set_list? What am I doing wrong?