docs: function(instance){
  			if(this.queryLogic) {
  				return canReflect.getIdentity(instance, this.queryLogic.schema);
  			} else if(this.idProp) {
  				return instance[this.idProp];
  			} else {
  				throw new Error("can-connect/base/base - Please add a queryLogic option.")
  			}
  		}