The lasso select in example widget_with_plot.py does not work

[msalvaris]

streamlit==1.3.0
streamlit-bokeh-events==0.1.2
bokeh==2.4.1

When running the example widget_with_plot.py the scatter plot does not appear. It seems that a call to st.bokeh_chart(plot, use_container_width=False) is missing

After adding this the plot appears but the lasso select event does not seem to trigger anything on the streamlit side. The selection on the table seems to work fine.

Tried to install streamlit from git repo and get the following error
StreamlitAPIException: No such component directory: '/home/mat/anaconda3/envs/koz_viewer/lib/python3.7/site-packages/streamlit_bokeh_events/frontend/build'

I am guessing I am missing some build command?