# File lib/russian/backend/advanced.rb, line 110
        def pluralize(locale, entry, count)
          return entry unless entry.is_a?(Hash) and count

          key = :zero if count == 0 && entry.has_key?(:zero)
          locale_pluralize = lookup(locale, :pluralize)
          if locale_pluralize && locale_pluralize.respond_to?(:call)
            key ||= locale_pluralize.call(count)
          else
            key ||= default_pluralizer(count)
          end
          raise InvalidPluralizationData.new(entry, count) unless entry.has_key?(key)

          entry[key]
        end