Error in training the fine tuned llm model in colab

Short Course Q&A Finetuning Large Language Models
1

from llama import BasicModelRunner
model = BasicModelRunner(“EleutherAI/pythia-70m”)
model.load_data_from_jsonlines(“/content/my_domain.jsonl”, input_key=“question”, output_key=“answer”)
model.train()

Getting the below error when I run model.train() in colab:
TypeError Traceback (most recent call last)
in <cell line: 1>()
----> 1 model.train()

4 frames
/usr/local/lib/python3.10/dist-packages/lamini/api/rest_requests.py in make_web_request(key, url, http_method, json)
14 headers = {
15 “Content-Type”: “application/json”,
—> 16 “Authorization”: "Bearer " + key,
17 }
18 if http_method == “post”:

TypeError: can only concatenate str (not “NoneType”) to str