function( attributes, options ) {
			options || ( options = {} );
			options.create = false;
			return this.findOrCreate( attributes, options );
		}
function( attributes, options ) {
			options || ( options = {} );
			options.create = false;
			return this.findOrCreate( attributes, options );
		}
function ( attributes , options ) { options || ( options = { } ) ; options . create = false ; return this . findOrCreate ( attributes , options ) ; }
Find an instance of `this` type in 'Backbone.Relational.store'.
- If `attributes` is a string or a number, `find` will just query the `store` and return a model if found.
- If `attributes` is an object and is found in the store, the model will be updated with `attributes` unless `options.update` is `false`.
@param {Object|String|Number} attributes Either a model's id, or the attributes used to create or update a model.
@param {Object} [options]
@param {Boolean} [options.merge=true]
@param {Boolean} [options.parse=false]
@return {Backbone.RelationalModel}
Find an instance of this type in Backbone . Relational . store . - If attributes is a string or a number find will just query the store and return a model if found . - If attributes is an object and is found in the store the model will be updated with attributes unless options . update is false .