112   var modelMatcher = function(attrs) {  argument
113     var matcher = _.matches(attrs);
395     var attrs = attributes || {};
401     if (options.parse) attrs = this.parse(attrs, options) || {};
403     attrs = _.defaults(_.extend({}, defaults, attrs), defaults);
404     this.set(attrs, options);
462     matches: function(attrs) {  argument
463       return !!_.iteratee(attrs, this)(this.attributes);
473       var attrs;
475         attrs = key;
478         (attrs = {})[key] = val;
484       if (!this._validate(attrs, options)) return false;
503       for (var attr in attrs) {
504         val = attrs[attr];
515       if (this.idAttribute in attrs) this.id = this.get(this.idAttribute);
548       var attrs = {};
549       for (var key in this.attributes) attrs[key] = void 0;
550       return this.set(attrs, _.extend({}, options, {unset: true}));
614       var attrs;
616         attrs = key;
619         (attrs = {})[key] = val;
628       if (attrs && !wait) {
629         if (!this.set(attrs, options)) return false;
630       } else if (!this._validate(attrs, options)) {
643         if (wait) serverAttrs = _.extend({}, attrs, serverAttrs);
651       if (attrs && wait) this.attributes = _.extend({}, attributes, attrs);
654       if (method === 'patch' && !options.attrs) options.attrs = attrs;
730     _validate: function(attrs, options) {  argument
732       attrs = _.extend({}, this.attributes, attrs);
733       var error = this.validationError = this.validate(attrs, options) || null;
879             var attrs = this._isModel(model) ? model.attributes : model;
880             if (options.parse) attrs = existing.parse(attrs, options);
881             existing.set(attrs, options);
1018     where: function(attrs, first) {  argument
1019       return this[first ? 'find' : 'filter'](attrs);
1024     findWhere: function(attrs) {  argument
1025       return this.where(attrs, true);
1105     modelId: function(attrs) {  argument
1106       return attrs[this.model.prototype.idAttribute || 'id'];
1119     _prepareModel: function(attrs, options) {  argument
1120       if (this._isModel(attrs)) {
1121         if (!attrs.collection) attrs.collection = this;
1122         return attrs;
1126       var model = new this.model(attrs, options);
1370         var attrs = _.extend({}, _.result(this, 'attributes'));
1371         if (this.id) attrs.id = _.result(this, 'id');
1372         if (this.className) attrs['class'] = _.result(this, 'className');
1374         this._setAttributes(attrs);
1426       params.data = JSON.stringify(options.attrs || model.toJSON(options));