# File lib/flickr/auth.rb, line 69
        def checkToken(token=nil)
                token ||= @token
                token = token.token if token.class == Flickr::Token
                res = @flickr.call_unauth_method('flickr.auth.checkToken',
                        'auth_token' => token)
                @token = Flickr::Token.from_xml(res)
        end