# File lib/active_support/i18n_railtie.rb, line 55
    def self.init_fallbacks(fallbacks)
      include_fallbacks_module

      args = case fallbacks
      when ActiveSupport::OrderedOptions
        [*(fallbacks[:defaults] || []) << fallbacks[:map]].compact
      when Hash, Array
        Array.wrap(fallbacks)
      else # TrueClass
        []
      end

      I18n.fallbacks = I18n::Locale::Fallbacks.new(*args)
    end