# File lib/flickr/upload.rb, line 132
        def upload_file_async(filename,title=nil,description=nil,tags=nil,
                        is_public=nil,is_friend=nil,is_family=nil)
                mt = MIME::Types.of(filename)
                f = File.open(filename,'rb')
                data = f.read
                f.close
                return upload_image_async(data,mt,filename,title,description,
                                tags, is_public,is_friend,is_family)
        end