You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: customer_with_balance_serializer.rb
    path of file: ./repos/openfoodnetwork/app/serializers/api/admin
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Api
  module Admin
    # This serializer relies on `object` to respond to `#balance_
    
      def balance_status
        if balance_value.positive?
          "credit_owed"
        elsif balance_value.negative?
          "balance_due"
        else
          ""
        end