!! Alexa Voice Service
https://github.com/respeaker/avs
!! Skill kit SDK for Python
https://github.com/alexa-labs/alexa-skills-kit-sdk-for-python
!! Google assistanse
 pip3.6 install --upgrade google-assistant-sdk[samples]
 pip3.6 install --upgrade google-auth-oauthlib[tool]
 pip3.6 install --upgrade google-assistant-sdk[samples]
 pip3.6 install --upgrade google-assistant-library