enum(
:debug,
:error,
:cli,
:statsess,
:reqend,
:sessionopen,
:sessionclose,
:backendopen,
:backendxid,
:backendreuse,
:backendclose,
:httpgarbage,
:backend,
:length,
:fetcherror,
:rxrequest,
:rxresponse,
:rxstatus,
:rxurl,
:rxprotocol,
:rxheader,
:txrequest,
:txresponse,
:txstatus,
:txurl,
:txprotocol,
:txheader,
:objrequest,
:objresponse,
:objstatus,
:objurl,
:objprotocol,
:objheader,
:lostheader,
:ttl,
:fetch_body,
:vcl_acl,
:vcl_call,
:vcl_trace,
:vcl_return,
:vcl_error,
:reqstart,
:hit,
:hitpass,
:expban,
:expkill,
:workthread,
:esi_xmlerror,
:hash,
:backend_health,
:vcl_log,
:gzip
)