# File lib/mechanize/cookie_jar.rb, line 78 def save_as(file, format = :yaml) jar = dup jar.cleanup true open(file, 'w') { |f| case format when :yaml then load_yaml YAML.dump(jar.jar, f) when :cookiestxt then jar.dump_cookiestxt(f) else raise ArgumentError, "Unknown cookie jar file format" end } self end