public function update( $count ) {
		update_post_meta(
			$this->post_id,
			'_inc2734_count_cache_' . $this->service_name,
			[
				'count'      => $count,
				'expiration' => time() + (int) apply_filters( 'inc2734_wp_share_buttons_count_cache_seconds', 60 * 5 ),
			]
		);
	}