nl_tokens: Returns a bound handler for doing event bubbling while adding a name to the change string .
pl_tokens: function ( propertyName ) { if ( ! this . _eventBubblingHandlerCache [ propertyName ] ) { this . _eventBubblingHandlerCache [ propertyName ] = function ( <mask> , model , newValue ) { if ( changeRE . test ( name ) ) { this . trigger ( 'change:' + propertyName + '.' + name . split ( ':' ) [ 1 ] , model , newValue ) ; } else if ( name === 'change' ) { this . trigger ( 'change' , this ) ; } } . bind ( this ) ; } return this . _eventBubblingHandlerCache [ propertyName ] ; }