I am a beginner in large language models (LLMs) and I am working on a project. I have a question regarding embeddings in an LLM. How can I modify the embeddings of an LLM? Are they stored in a specific file, or is there a library that allows me to completely change them? Is it possible to remove the existing embeddings and replace them with new ones? Can I create my own embeddings and feed them as input to an LLM? Also, should I modify the embeddings of the LLM itself or the embeddings of the user input? Thanks for your help!