The role of variables in code

[SZU-YoonAyU]

I'm glad you can open source your code for me to refer to, but I have some questions about variables in the code that I hope you can answer The variable is' checkpoint ', why is it' path to the pre trained weights', and does its role refer to punctuation in the image? If I now have a fundus image and its label, how should I determine 'checkpoint'? Thank you for giving me the opportunity to ask questions. I hope you can reply promptly when you see it. Your sincerely, SY C