i can't find path

[HodaKhsh]

Hi. I want to train this model with my own data. In one of the steps, it says, "Put BSRNet model (e.g., '400000_G.pth') into superresolution/bsrgan_x4_gan/models." Where are BSRNet model and superresolution/bsrgan_x4_gan located? and How can I do this step?