nl_tokens: Constructor function takes the following paramters :
pl_tokens: function ( <mask> , maxAge , cronTime , options ) { this . job = null ; this . path = path ; this . maxAge = maxAge ; this . cronTime = cronTime ; this . options = util . _extend ( { } , defaultOptions ) ; if ( typeof options === 'object' && options !== null ) { this . options = util . _extend ( this . options , options ) ; } if ( this . options . start === true ) { this . start ( ) ; } }