How to configure Logspout syslog adaptor to use below syslog-ng config file?

[prem-winzo]

`@version: 3.35
source s_src {
internal();
};

template NRFormat { template("newrelic_key_here <${PRI}>1 ${ISODATE} ${HOST:--} ${PROGRAM:--} ${PID:--} ${MSGID:--} ${SDATA:--} $MSG\n");
template_escape(no);
};

destination d_newrelic {
network("newrelic.syslog.nr-data.net" port(6514)
transport("tls")
tls(peer-verify(no))
template(NRFormat2)
);
};
log {
source(s_src);
#source(s_files); ## in case step 4 is implemented.
destination(d_newrelic);
};`

This template is expecting newrelic_licence_ley before <${PRI}>1 and logspout does not seem to support this.