Conversion of different model architectures

[levicki]

I have a couple of adventure and novel writing models which when I try to convert using convert_hf_to_gguf.py I get one of the following errors:

1. ERROR:hf-to-gguf:Model XGLMForCausalLM is not supported
2. ERROR:hf-to-gguf:Model GPTJForCausalLM is not supported
3. ERROR:hf-to-gguf:Model OPTForCausalLM is not supported
4. ERROR:hf-to-gguf:Model GPTJForCausalLM is not supported

I am pretty sure they should be convertable. If it is of any relevance they are from KoboldAI, and I'd like to convert them to GGUF to try importing them to Ollama for using with some better UI.

Any help / advice is appreciated.