presto-hive/src/main/java/io/prestosql/plugin/hive/authentication/HdfsKerberosConfig.java/HdfsKerberosConfig/getHdfsPrestoKeytab
class HdfsKerberosConfig:    @NotNull
    public String getHdfsPrestoKeytab()
    {
        return hdfsPrestoKeytab;
    }