How do you run this in terminal? 

I tried it here 

```elixir
defmodule UberForIceCream.Dspy.Question do
  use Ash.Resource,
    domain: UberForIceCream.Dspy,
    data_layer: AshPostgres.DataLayer,
    extensions: [AshPhoenix, AshAi]

  postgres do
    table "questions"
    repo UberForIceCream.Repo
  end

  code_interface do
    define :create
    define :read
    define :update
    define :get_by_id, action: :read, get_by: :id
    define :analyze_sentiment
  end

  actions do
    default_accept :*
    defaults [:create, :read, :update, :destroy]



    # <<<<<<<<<<<<<<<<<<<< THIS IS THE ACTION >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>


    action :analyze_sentiment, :atom do
      constraints one_of: [:positive, :negative]

      description """
      Analyzes the sentiment of a given piece of text to determine if it is overall positive or negative.
      """

      argument :text, :string do
        allow_nil? false
        description "The text for analysis"
      end

      run prompt(
        LangChain.ChatModels.ChatOpenAI.new!(%{ model: "gpt-4o"}),
        # setting `tools: true` allows it to use all exposed tools in your app
        tools: false
        # alternatively you can restrict it to only a set of tools
        # tools: [:list, :of, :tool, :names]
        # provide an optional prompt, which is an EEx template
         # prompt: "Analyze the sentiment of the following text: <%= @input.arguments.description %>"
      )
    end
  end

  attributes do
    uuid_v7_primary_key :id

    attribute :q_text, :string do
      allow_nil? false
      public? true
    end

    attribute :topics, {:array, :string} do
      public? true
    end
  end
end



```

`analyze_sentiment`

in terminal , I got 
```
 
iex(9)> Question.analyze_sentiment()
{:error,
 %Ash.Error.Invalid{
   errors: [
     %Ash.Error.Changes.Required{
       field: :text,
       type: :argument,
       resource: UberForIceCream.Dspy.Question,
       splode: Ash.Error,
       bread_crumbs: [],
       vars: [],
       path: [],
       stacktrace: #Splode.Stacktrace<>,
       class: :invalid
     }
   ]
 }}
iex(10)> Question.analyze_sentiment("asdf")
** (Protocol.UndefinedError) protocol Enumerable not implemented for type BitString

Got value:

    "asdf"

```

Why does it need enumerable?