Thank you @valhalla for the quick reply.
Just trying to understand it, I came across this https://github.com/curiousily/Getting-Things-Done-with-Pytorch/blob/master/08.sentiment-analysis-with-bert.ipynb 16 here a classifier is added on top of base model and trained rather than directly using a …forSequenceClassification task,  would it be possible to tell me how the 2 approaches differ or any relevant links on it