First you have to install jupyter_contrib_nbextensions in Anaconda Prompt:
pip install jupyter_contrib_nbextensions
Then:
pip3 install jupyter-tabnine --user
jupyter nbextension install --py jupyter_tabnine --user
jupyter nbextension enable --py jupyter_tabnine --user
jupyter serverextension enable --py jupyter_tabnine --user
pip3 install jupyter-tabnine --user
2jupyter nbextension install --py jupyter_tabnine --user
3jupyter nbextension enable --py jupyter_tabnine --user
4jupyter serverextension enable --py jupyter_tabnine --user
RUN jupyter nbextension install --py jupyter_tabnine
RUN jupyter nbextension enable --py jupyter_tabnine
RUN jupyter serverextension enable --py jupyter_tabnine
jupyter nbextension install --py jupyter_tabnine [--user|--sys-prefix|--system]