sections example

// Temporarily disable installation in Customizer. See #42184.         $filesystem_method = get_filesystem_method();
        ob_start();
        $filesystem_credentials_are_stored = request_filesystem_credentials( self_admin_url() );
        ob_end_clean();
        if ( 'direct' !== $filesystem_method && ! $filesystem_credentials_are_stored ) {
            $settings['theme']['_filesystemCredentialsNeeded'] = true;
        }

        // Prepare Customize Section objects to pass to JavaScript.         foreach ( $this->sections() as $id => $section ) {
            if ( $section->check_capabilities() ) {
                $settings['sections'][ $id ] = $section->json();
            }
        }

        // Prepare Customize Panel objects to pass to JavaScript.         foreach ( $this->panels() as $panel_id => $panel ) {
            if ( $panel->check_capabilities() ) {
                $settings['panels'][ $panel_id ] = $panel->json();
                foreach ( $panel->sections as $section_id => $section ) {
                    if ( $section->check_capabilities() ) {