show children pages of current page

show-children-pages.php

    <div class="solutions-holder">
        <div class="wrapper">
            <?php
            $args = [
                'post_parent' => $post->ID,
                'post_type' => 'page',
                'orderby' => 'menu_order'
            ];
            $child_query = new WP_Query( $args );

            while ( $child_query->have_posts() ) : $child_query->the_post();
                get_template_part('partials/solution');
            endwhile;
            wp_reset_postdata();
            ?>
        </div>
    </div>