dropdownmenus not working in version 1.12.5 while documentation claims it does. #542

Documentation for dropdown menus claims to be working 1.12.4+ [Source: https://plot.ly/python/dropdowns/]

But, I run

import plotly
plotly.version
'1.12.5'

Yet, I get :

PlotlyDictKeyError: 'updatemenus' is not allowed in 'layout'

Path To Error: ['updatemenus']

Valid attributes for 'layout' at path [] under parents []:

['orientation', 'paper_bgcolor', 'scene', 'height', 'radialaxis',
'titlefont', 'images', 'hovermode', 'font', 'boxmode', 'autosize',
'title', 'plot_bgcolor', 'dragmode', 'smith', 'width', 'bargap',
'xaxis', 'bargroupgap', 'hidesources', 'direction', 'hiddenlabelssrc',
'showlegend', 'separators', 'hiddenlabels', 'barmode', 'boxgap',
'angularaxis', 'geo', 'legend', 'yaxis', 'annotations', 'shapes',
'barnorm', 'ternary', 'boxgroupgap', 'margin']

Run <layout-object>.help('attribute') on any of the above.
'' is the object at []

Feature itself seems to have checked in to "1.16.0" [source: https://github.com/plotly/plotly.js/pull/770]

Documentation needs to be corrected?

P.S I'm running on a hosted Jupyter server that I don't have access to upgrade packages.