Help wanted: Chat Platform- Run script vs Python module

I want to connect my bot to twilio using an external python script instead of the run method. I know the run- script method requires the following command line argument:

python -m -d models/dialogue -u models/current/nlu --endpoints endpoints.yml --connector "twilio" --port 5002 --credentials credentials.yml --enable_api

My question is, if I am using a python script when exactly do I run the script? Do I add it to the command above? Do I run the script before running rasa core?

I think this is a pretty simple question, that the docs probably glance over because of how simple it is. Any chance you could point me in the right direction @akelad Thank you!!