added doc_test

docs/Makefile

docs/_build/doctrees/environment.pickle

docs/_build/html/.nojekyll

docs/_build/html/_modules/base_pulse.html

docs/_build/html/_modules/segments/data_classes.html

docs/_build/html/_modules/segments/segments.html

docs/_build/html/_sources/index.rst.txt

docs/_build/html/_static/basic.css

docs/_build/html/_static/comment-close.png

docs/_build/html/_static/comment.png

docs/_build/html/_static/css/badge_only.css

docs/_build/html/_static/doctools.js

docs/_build/html/_static/down.png

docs/_build/html/_static/file.png

docs/_build/html/_static/fonts/Lato/lato-bold.eot

docs/_build/html/_static/fonts/Lato/lato-bold.ttf

docs/_build/html/_static/fonts/Lato/lato-bold.woff

docs/_build/html/_static/fonts/Lato/lato-bold.woff2

docs/_build/html/_static/fonts/Lato/lato-bolditalic.eot

docs/_build/html/_static/fonts/Lato/lato-bolditalic.ttf