# File lib/patron/request.rb, line 58
    def auth_type=(type=:basic)
      @auth_type = case type
      when :basic, "basic"
        Request::AuthBasic
      when :digest, "digest"
        Request::AuthDigest
      when :any, "any"
        Request::AuthAny
      else
        raise "#{type.inspect} is an unknown authentication type"
      end
    end