“29791b8e59c9d55e61d71c7bf5f9fcd74a15abb7”上不存在“.github/git@gitcode.net:paddlepaddle/VisualDL.git”
Do not use ctor * Reduce line of codes. * We can use virtual function for Maker now. * The implementation does not care what maker holds, it is easier to refactor later.