```ruby
require "arug/trader/version"

module Arug
  module Trader
    # Your code goes here...
  end
end
```

Update top level gem include file.
user
```ruby
require "arug/trader/line_item"
require "arug/trader/money"
require "arug/trader/rates_file"
require "arug/trader/transactions_file"
require "arug/trader/version"

module Arug
  module Trader
  end
end
```
assistant