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It's possible that list is not up to date but you can always pass it in as a string

ooh gotcha, thanks Kamal. I'll just have to tell TypeScript to ignore the error somehow?

what's the error? it should accept a union of string or InstanceType

```Type '"m6i.xlarge"' is not assignable to type 'Input&lt;InstanceType&gt; | undefined'.ts(2322)
nodegroup.d.ts(35, 5): The expected type comes from property 'instanceType' which is declared here on type 'ClusterNodeGroupOptions'```

are you using a component? seems like it has incorrect types assigned.

Hmm, here's my full callsite

```  const onDemandNodeGroup = cluster.createNodeGroup(`${prefix}-on-demand`, {
    instanceType: "m6i.xlarge",
    desiredCapacity: 3,
    minSize: 1,
    maxSize: 4,
    labels: { lifecycle: "on-demand" },
    instanceProfile: instanceProfile1,
    nodeAssociatePublicIpAddress: true,
    extraNodeSecurityGroups: [eks_sg],
    nodeSubnetIds: vpc.publicSubnetIds,
  });```
`cluster` is an `eks.Cluster`

That type is defined here <https://github.com/pulumi/pulumi-eks/blob/4f4a75b17de98cf2f9c3d34a960b59503cbc4f0a/nodejs/eks/nodegroup.ts#L59>

Yeah okay that's the bug. It should be something like
```instanceType?: pulumi.Input&lt;string | aws.ec2.InstanceType&gt;```

like here: <https://github.com/pulumi/pulumi-aws/blob/8cdca73c8c37d91ad9bcdc2e6b616926df730ea2/sdk/nodejs/ec2/instance.ts#L709>

Worth opening an issue because that type definition is out of date

Awesome. Well. At least we know what the problem is!

Seems like in the short term I can do
```instanceType: "m6i.xlarge" as pulumi.Input&lt;any&gt;```
But long term that type definition should be fixed