AttributeError: 'Figure' object has no attribute 'add_shape'

[ef93]

Hi
I'm using plotly=4.1.1 (ubuntu 18.04) when I'm trying to run the first sample code in this link (https://plot.ly/python/shapes/) this error occurs:

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-1-42d58f404ac6> in <module>
     18 
     19 # Add shapes
---> 20 fig.add_shape(
     21         # Line Vertical
     22         go.layout.Shape(

AttributeError: 'Figure' object has no attribute 'add_shape'

[ef93]

Solved:
just need to install plotly=4.4.1