I'm going to use https to communicate with cnosdb. Does anyone know how to use the --ssl parameter in cnosdb-cli?

I found that cnosdb-cli has two parameters:

--ssl and --unsafe-ssl

I know that cnosdb-cli --unsafe-ssl can be used to achieve an authenticated https connection, but I do not know how to use --ssl?

$ cnosdb-cli -h
Command Line Client for Cnosdb.
...
...
      --ssl
          Use HTTPS connection
      --unsafe-ssl
          Allow unsafe HTTPS connections
      --cacert <FILE>
          Use the specified certificate file to verify the connection peer. The certificate(s) must be in PEM format
...
...