OSError: dggokul21/Testcase_Generator does not appear to have a file named pytorch_model.bin, tf_model.h5, model.ckpt or flax_model.msgpack

This is the error I have got when try to use the finetuned model in my code .The scenario is I have fine tuned the https://huggingface.co/mosaicml/mpt-7b-chat with my own dataset that i have prepared https://huggingface.co/datasets/dggokul21/Testcases and tried to save the trained model in my drive using

It have stored only config.json, generation_config.json, special_tokens_map.json, tokenizer.json , tokenizer_config.json and model0001.safetensors.
i have pushed the model to hugging face hub and tried.
so while using this in the code the error comes.

Can anyone explain this and how can we use the safetensor model in our code?