TLS

Para brokers seguros (porta 8883):

from pycmcontrol_mqtt import BrokerTLS

tls = BrokerTLS(
    ca_certs="ca.pem",
    certfile="client.crt",
    keyfile="client.key",
)

with CmControlClient(cfg, tls=tls) as cmc:
    cmc.ensure_login()