Intrinsic Functions: Nested Array within ArrayContains

Question

Is it possible to nest a `States.Array` within `States.ArrayContains`?

I have a variable in my Step Function which attempts this nesting
```
"ForceRun.$": "States.ArrayContains(States.Array($.args.firststage, $.args.all), true)"
```

but this yields the following error
```
An error occurred while executing the state 'firststage' (entered at the event id #29). There was an error while evaluating the intrinsic function: States.ArrayContains(States.Array($.args.firststage, $.args.all), true). Invalid arguments in States.ArrayContains
```

Is this an error on my part?

### Update

To recreate the issue, create a step function which calls another step function as such:
```
{
  "Comment": "A description of my state machine",
  "StartAt": "Step Functions StartExecution",
  "States": {
    "Step Functions StartExecution": {
      "Type": "Task",
      "Resource": "arn:aws:states:::states:startExecution.sync:2",
      "Parameters": {
        "StateMachineArn": "arn:aws:states:eu-west-2::stateMachine:test-nested",
        "Input": {
          "ForceRun.$": "States.ArrayContains(States.Array($.firststage, $.all), true)"
        }
      },
      "End": true
    }
  }
}
```

Example input
```
{"firststage": false "all": true}
```

Answer

In [official documentation](https://docs.aws.amazon.com/step-functions/latest/dg/amazon-states-language-intrinsic-functions.html#asl-intrsc-func-arrays), `States.ArrayContains` has the following limitations:

> - You must specify an array as the input value for function's first argument.
> - You must specify a valid JSON object as the second argument.
> - The input array can't exceed Step Functions' payload size limit of 256 KB.

I tried your example but I couldn't reproduce the error.
![Enter image description here](/media/postImages/original/IMF_3ApAJbSmOnn68G8ZNX1g)

Intrinsic Functions: Nested Array within ArrayContains

Update

Relevant content