When fine-tuning Real ESRGAN, What is the relationship between total_iter and epoch（微调 Real-ESRGAN时，total_iter和epoch有什么关系）

[AllenGitHub1]

When I was fine-tuning Real ESRGAN using my own dataset, The total_ iter is set to 400000. May I ask if this has anything to do with epoch? I previously trained models such as YOLO, usually epoch。（当我使用自己的数据集微调Real ESRGAN时，total_iter设置为400000。我可以问一下，这是否与大纪元有关？我以前训练过YOLO这样的模型，通常是epoch）