BetterReflection\Reflection\ReflectionObject::isSubclassOf PHP Method

    public function isSubclassOf($className)
    {
        return $this->reflectionClass->isSubclassOf($className);
    }

 /**
  * {@inheritDoc}
  */
 public function isSubclassOf($class)
 {
     return $this->betterReflectionObject->isSubclassOf($class);
 }