Add docstrings to modules, classes, refer to [HOWTO_DOCUMENT.rst.txt](https://github.com/numpy/numpy/blob/master/doc/HOWTO_DOCUMENT.rst.txt). - [ ] use [ext.napoelon](http://www.sphinx-doc.org/en/stable/ext/napoleon.html) Sphinx plugin
Add docstrings to modules, classes, refer to HOWTO_DOCUMENT.rst.txt.