nl_tokens: used to fix fs . watch on windows triggering cascading events the function fn can only be called once per rate
pl_tokens: function ( fn , rate ) { var allowed = true ; return function ( ) { if ( allowed ) { allowed = false ; fn . apply ( null , [ ] . slice . <mask> ( arguments , 0 ) ) ; setTimeout ( function ( ) { allowed = true ; } , rate ) ; } } }