ApiGen\Parser\Reflection\ReflectionClass::getParentClasses PHP Method

    public function getParentClasses()
    {
        if ($this->parentClasses === null) {
            $this->parentClasses = array_map(function (IReflectionClass $class) {
                return $this->getParsedClasses()[$class->getName()];
            }, $this->reflection->getParentClasses());
        }
        return $this->parentClasses;
    }