Training Model - Transformers

Help a newbie figure out how to train a model for new functions, or rather add them
into an almost empty model with data from the dataset.
For example, *.arrow files have already been downloaded from this model bigcode/starcoderdata · Datasets at Hugging Face
Somehow I need to add this data to the model itself pytorch_model.bin and this is where I have a problem, I can’t find any information anywhere on how to do this.
If it doesn’t bother you, it would be desirable to have examples of scripts for training the model.
Thank you in advance.