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: set_fallback_locale_for_store.rb
    path of file: ./repos/spree/core/app/services/spree/locales
    
    the code of the file until where you have to start completion: module Spree
  module Locales
    class SetFallbackLocaleForStore
      def
    
      def call(store:)
        store_default_locale = store.default_locale
        fallbacks = store.supported_locales_list.each_with_object({}) do |locale, object|
          object[locale] = [store_default_locale]
        end

        fallbacks_instance = I18n::Locale::Fallbacks.new(fallbacks)

        Mobility.store_based_fallbacks = fallbacks_instance
      end