Compile error: module Any is reserved and cannot be defined

# myapp/lib/myapp/data/resources/city.ex
defmodule MyApp.Data.City do
  use Ash.Resource
    
  actions do
    defaults [:create, :update, :read, :destroy]
  end

  attributes do
    uuid_primary_key :id
    attribute :name, :string do
      allow_nil? false
    end
  end

  relationships do
    has_one :state, MyApp.Data.State
  end
end

defmodule MyApp.Data.State do
  @moduledoc false
  use Ash.Resource

  actions do
    defaults [:create, :update, :read, :destroy]
  end

  attributes do
    uuid_primary_key :state_id
    attribute :name, :string do
      allow_nil? false
    end
    attribute :url, :string do
      allow_nil? true
    end
  end

  relationships do
    has_one :region, MyApp.Data.Region
  end
end

defmodule MyApp.Data.Region do
  @moduledoc false
  use Ash.Resource

  actions do
    defaults [:create, :update, :read, :destroy]
  end

  attributes do
    uuid_primary_key :region_id
    attribute :name, :string do
      allow_nil? false
    end
  end
end

** (CompileError) iex:1: module Any is reserved and cannot be defined
Elixir reserves the following module names: Elixir, Any, BitString, PID, and Reference.

(ArgumentError) schema does not have the field :id used by association :region, please set the :references option accordingly

Stacktrace:
  │ (ecto 3.9.4) lib/ecto/association.ex:696: Ecto.Association.Has.struct/3
  │ (ecto 3.9.4) lib/ecto/schema.ex:1879: Ecto.Schema.association/5
  │ (ecto 3.9.4) lib/ecto/schema.ex:2006: Ecto.Schema.__has_one__/4
  │ /Users/alec-s/Projects/myapp/lib/myapp/data/resources/state.ex:1: (file)
  │ /Users/alec-s/Projects/myapp/lib/myapp/data/resources/state.ex:1: (file)
  │ (stdlib 4.2) erl_eval.erl:748: :erl_eval.do_apply/7
  │ (stdlib 4.2) erl_eval.erl:136: :erl_eval.exprs/6Elixir