How do we connect to Sybase DB using pyodbc, FreeTDS driver and an SSL port?

Question

I am writing a python app that uses pyodbc and FreeTDS to connect to a Sybase DB. Here's the config -

pyodbc.connect('driver=FreeTDS',
  host=host, 
  database=database, 
  user=user, 
  password=password, 
  port=port)

This works just fine if I am connecting to a non-SSL port. I am however unable to figure out a way to connect to an SSL port, how do I provide the certificate details in the connecting parameters?

I have tried to tweak in the freetds.conf file, but it wouldn't work.