scription"><p>True if all properties are valid</p>
</section>

    
</article>
                    <article
        class="phpdocumentor-element
            -method
            -protected
                                    -static                    "
>
    <h4 class="phpdocumentor-element__name" id="method_openAPINullables">
        openAPINullables()
        <a href="classes/LINE-Clients-MessagingApi-Model-DiscountFixedPriceInfoRequest.html#method_openAPINullables" class="headerlink"><i class="fas fa-lin