Tracker Store setting for MariaDB with SSL connection

Getting Started with Rasa
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Hi, I am trying to configure the tracker store to connect to a remote MariaDB server with SSL connection. But I could not find any example on how to achieve it. Any helps will be appreciated.

Here’s my tracker store setting in endpoints.yml

tracker_store:
    type: SQL
    dialect: "mysql+pymsql"
    url: <db_url>
    port: <db_port>
    db: <db_name>
    username: <db_username>
    password: <db_password>