nl_tokens: Shamelessly copied from https : // github . com / mcavage / node - restify
pl_tokens: function createDTrace ( name ) { // see https://github.com/mcavage/node-restify/issues/80 and // https://github.com/mcavage/node-restify/issues/100 if ( ! DTRACE ) { try { var d = require ( 'dtrace-provider' ) ; DTRACE = d . createDTraceProvider ( name ) ; } catch ( e ) { DTRACE = { addProbe : function addProbe ( ) { var p = { fire : function ( ) { } } ; return ( p ) ; } , enable : function enable ( ) { } , fire : function <mask> ( ) { } , removeProbe : function ( ) { } , disable : function ( ) { } } ; } } return ( DTRACE ) ; }