Weak hands cannot be planted, meager skills have no foundation. Shallow wisdom is futile, how can one hope for a good name?扰扰从役倦，屑屑身事微。少壮轻年月，迟暮惜光辉。
_checks[] = $check_class;
}
/**
* Run all registered feature checks and return the results.
*
* @param int $post_id The post ID to run the checks on.
* @param string $content The post content to run the checks on.
*
* @return mixed False if no features were detected, an array detailing detected features otherwise.
*/
public function run_all_checks( $post_id, $content ) {
$failed_checks = array();
$meta = get_post_meta