public function get_columns() {
		return array(
			//'cb'                 => '<input type="checkbox" />',
			'bbp_topic_reply_author' => esc_html__( 'Author',  'bbpress' ),
			'bbp_reply_content'      => esc_html__( 'Content', 'bbpress' ),
			'bbp_reply_created'      => esc_html__( 'Replied', 'bbpress' ),
		);
	}