Source

File: wp-admin/includes/class-wp-comments-list-table.php

public function display() {
		wp_nonce_field( 'fetch-list-' . get_class( $this ), '_ajax_fetch_list_nonce' );
		static $has_items;

		if ( ! isset( $has_items ) ) {
			$has_items = $this->has_items();
			if ( $has_items ) {
				$this->display_tablenav( 'top' );
			}
		}

		$this->screen->render_screen_reader_content( 'heading_list' );

		?>
<table class="wp-list-table <?php echo implode( ' ', $this->get_table_classes() ); ?>">
	<thead>
	<tr>
		<?php $this->print_column_headers(); ?>
	</tr>
	</thead>

	<tbody id="the-comment-list" data-wp-lists="list:comment">
		<?php $this->display_rows_or_placeholder(); ?>
	</tbody>

	<tbody id="the-extra-comment-list" data-wp-lists="list:comment" style="display: none;">
		<?php
			/*
			 * Back up the items to restore after printing the extra items markup.
			 * The extra items may be empty, which will prevent the table nav from displaying later.
			 */
			$items       = $this->items;
			$this->items = $this->extra_items;
			$this->display_rows_or_placeholder();
			$this->items = $items;
		?>
	</tbody>

	<tfoot>
	<tr>
		<?php $this->print_column_headers( false ); ?>
	</tr>
	</tfoot>

</table>
		<?php

		$this->display_tablenav( 'bottom' );
	}