Does trino.auth.KerberosAuthentication accept keytab as ca_bundle?

[bloodyawei]

I am trying to map trino cli command options to trino.dbapi.connect and trino.auth.KerberosAuthentication.
But it throws SSLError(136, '[X509: NO_CERTIFICATE_OR_CRL_FOUND] no certificate or crl found (_ssl.c:4264)').
I am wondering if trino.auth.KerberosAuthentication can accept keytab as ca_bundle.

Here are my trino cli command and code.
./trino --server <server> --catalog <catalog> --user <user> --krb5-config-path <krb5-config-path> --krb5-principal <krb5-principal> --krb5-keytab-path <krb5-keytab-path> --krb5-remote-service-name trino --krb5-service-principal-pattern <krb5-service-principal-pattern>

from trino.dbapi import connect
from trino.auth import KerberosAuthentication

conn = connect(
        host='<host>',
        port='443',
        catalog='hive',
        http_scheme="https",
        user='<user>',
        schema='<schema>',
        auth=KerberosAuthentication(
            config=<krb5-config-path>,
            service_name='trino',
            mutual_authentication=False,   
            principal='<krb5-principal>',
            ca_bundle=<krb5-keytab-path>
        )
    )