This gist is used in the tutorial https://www.vijayan.in/how-to-create-custom-table-list-in-wordpress-admin-page

get_bulk_actions.php

<?php
...
	/**
	 * Get bulk actions.
	 *
	 * @return array
	 */
	public function get_bulk_actions() {
		return array(
			'trash' => __( 'Move to Trash', 'admin-table-tut' ),
		);
	}
  ...