Update docstring
Update docstring

bryanyang0528/ubike_api,Leonnash21/flask_heroku,pmrowla/goonbcs,QueryControl/querycontrol,Leonnash21/flask_heroku,Leonnash21/flask_heroku,QueryControl/querycontrol,Leonnash21/flask_heroku,bryanyang0528/ubike_api,pmrowla/goonbcs,Leonnash21/flask_heroku,bryanyang0528/ubike_api,QueryControl/querycontrol