simplified method
Implementation
EntityAccessRules simplified() {
if (_simplified) return this;
if (isInnocuous) return EntityAccessRules.innocuous;
var s = _simplifiedImpl();
return s._isInnocuousImpl()
? EntityAccessRules.innocuous
: EntityAccessRules._simplified(
s.ruleType, s.entityType, s.entityFields, s.rules, s.condition);
}