nl_tokens: Get the reverse relations ( pointing back to this . key on this . instance ) for the currently related model ( s ) .
pl_tokens: function ( model ) { var reverseRelations = [ ] ; // Iterate over 'model', 'this.related.models' (if this.related is a Backbone.Collection), or wrap 'this.related' in an array. var models = ! _ . isUndefined ( model ) ? [ model ] : this . related && ( this . related . models || [ this . related ] ) ; _ . each ( <mask> || [ ] , function ( related ) { _ . each ( related . getRelations ( ) || [ ] , function ( relation ) { if ( this . _isReverseRelation ( relation ) ) { reverseRelations . push ( relation ) ; } } , this ) ; } , this ) ; return reverseRelations ; }