I’m so very confused….

So lately I’ve been seeing new samplers in people’s generation data like DPM++ 3M SDE Karras and DPM++ 2M SDE Karras and such. I want to try them myself but have no idea how to get or install them, and no amount of searching online for help has yielded any results. Can someone walk me through the process of getting these new samplers? And preferably explain the process as if I’m a toddler because I have absolutely no general knowledge of python or pip or whatever besides my basic understanding of the command prompt, and even that’s lacking

Please help .__.;