def to_a
      result = []
      @domains.values.each do |paths|
        paths.values.each do |cookies|
          cookies.values.inject result, :<<
        end
      end
      result
    end
def to_a
      result = []
      @domains.values.each do |paths|
        paths.values.each do |cookies|
          cookies.values.inject result, :<<
        end
      end
      result
    end
Return an array of all cookie objects in the jar

 @return [Array<Cookie>] all cookies. Includes any expired cookies
 which have not yet been removed with expire_cookies