function( related ) {
			this.related = related;

			this.instance.acquire();
			this.instance.attributes[ this.key ] = related;
			this.instance.release();
		}
function( related ) {
			this.related = related;

			this.instance.acquire();
			this.instance.attributes[ this.key ] = related;
			this.instance.release();
		}
function ( related ) { this . related = related ; this . instance . acquire ( ) ; this . instance . attributes [ this . key ] = related ; this . instance . release ( ) ; }
Set the related model(s) for this relation
@param {Backbone.Model|Backbone.Collection} related
Set the related model ( s ) for this relation