logging DNS queries locally

In fact, I wrote a simple iRule that worked smoothly, I need to send the result of this iRule to a syslog server, I noticed I have to use HSL API in my iRule, any help doing this

when DNS_REQUEST { log local0. "QUERY from ([IP::client_addr]) for ([DNS::question class] [DNS::question type] [DNS::question name])"}

when DNS_RESPONSE { log local0. "[IP::remote_addr] - LOCATION: [whereis [IP::remote_addr]] - QUESTION: [DNS::question name], [DNS::question type] - ANSWER: [DNS::answer]"}