Describe the bug
Warning, treated as error:
/home/ubuntu/anaconda3/envs/sagemaker/lib/python3.7/site-packages/sagemaker/amazon/linear_learner.py:docstring of sagemaker.LinearLearner:184:Field list ends without a blank line; unexpected unindent.
To reproduce
Setup an env w/ the latest Sphinx (3.2.1) and build the docs.