isTrue example

$env = EnvironmentHelper::getVariable('APP_ENV', 'prod');
        $feature = self::normalizeName($feature);

        if (self::$registeredFeatures !== []
            && !isset(self::$registeredFeatures[$feature])
            && $env !== 'prod'
        ) {
            trigger_error('Unknown feature "' . $feature . '"', \E_USER_WARNING);
        }

        $featureAll = EnvironmentHelper::getVariable('FEATURE_ALL', '');
        if (self::isTrue((string) $featureAll) && (self::$registeredFeatures === [] || \array_key_exists($feature, self::$registeredFeatures))) {
            if ($featureAll === Feature::ALL_MAJOR) {
                return true;
            }

            // return true if it's registered and not a major feature             if (isset(self::$registeredFeatures[$feature]) && (self::$registeredFeatures[$feature]['major'] ?? false) === false) {
                return true;
            }
        }

        if (!EnvironmentHelper::hasVariable($feature) && !EnvironmentHelper::hasVariable(\strtolower($feature))) {
            

            return [];
        }

        if (!isset($node->getArgs()[$autoloadParamPosition])) {
            // autoload parameter not passed             return [];
        }

        $autoloadValueExpr = $node->getArgs()[$autoloadParamPosition]->value;
        $propertyNameValueExpr = $node->getArgs()[$propertyNameParamPosition]->value;

        if ($scope->getType($autoloadValueExpr)->isTrue()->yes()) {
            $definitionClassReflection = $scope->getClassReflection()->getNativeReflection();

            $constant = $definitionClassReflection->getReflectionConstant('ENTITY_NAME');

            if ($constant === false) {
                return [];
            }

            $constantValue = $constant->getValueExpression();
            if (!$constantValue instanceof String_) {
                return [];
            }