nl_tokens: Add handlers to be called when the Deferred object is resolved or rejected .
pl_tokens: function ( resolve , reject , label ) { var deferred , promise , entity ; entity = this ; deferred = get ( this , '_deferred' ) ; promise = deferred . promise ; function fulfillmentHandler ( fulfillment ) { if ( fulfillment === promise ) { return resolve ( <mask> ) ; } else { return resolve ( fulfillment ) ; } } return promise . then ( resolve && fulfillmentHandler , reject , label ) ; }