source: lightning/12.9.0/singular.php

<?php get_header(); ?>

<?php
if ( lightning_is_page_header_and_breadcrumb() ) {

        // Dealing with old files.
        // Actually, it's ok to only use get_template_part().
        /*
         Page Header
        /*-------------------------------------------*/
        $old_file_name[] = 'module_pageTit.php';
        if ( locate_template( $old_file_name, false, false ) ) {
                locate_template( $old_file_name, true, false );
        } else {
                get_template_part( 'template-parts/page-header' );
        }

        /*
         BreadCrumb
        /*-------------------------------------------*/
        do_action( 'lightning_breadcrumb_before' );
        $old_file_name[] = 'module_panList.php';
        if ( locate_template( $old_file_name, false, false ) ) {
                locate_template( $old_file_name, true, false );
        } else {
                get_template_part( 'template-parts/breadcrumb' );
        }
        do_action( 'lightning_breadcrumb_after' );

} // if ( lightning_is_page_header_and_top_breadcrumb() ){
?>

<div class="<?php lightning_the_class_name( 'siteContent' ); ?>">
<?php do_action( 'lightning_siteContent_prepend' ); ?>
<div class="container">
<?php do_action( 'lightning_siteContent_container_prepend' ); ?>
<div class="row">

        <div class="<?php lightning_the_class_name( 'mainSection' ); ?>" id="main" role="main">
                <?php do_action( 'lightning_mainSection_prepend' ); ?>
                <?php 
                $template = 'template-parts/post/content-' . esc_attr( $post->post_name ).'.php';
                $return = locate_template( $template );
                if ( $return && $post->post_name != get_post_type() ){
                        locate_template( $template, true );
                } else {
                        get_template_part( 'template-parts/post/content', get_post_type() );
                } ?>
                <?php do_action( 'lightning_mainSection_append' ); ?>
        </div><!-- [ /.mainSection ] -->

        <?php if ( lightning_is_subsection_display() ) : ?>
                <div class="<?php lightning_the_class_name( 'sideSection' ); ?>">
                <?php get_sidebar( get_post_type() ); ?>
                </div><!-- [ /.subSection ] -->
        <?php endif; ?>

<?php do_action( 'lightning_additional_section' ); ?>

</div><!-- [ /.row ] -->
<?php do_action( 'lightning_siteContent_container_apepend' ); ?>
</div><!-- [ /.container ] -->
<?php do_action( 'lightning_siteContent_apepend' ); ?>
</div><!-- [ /.siteContent ] -->

<?php get_footer(); ?>