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。
schema = $schema;
if ( null === $validator ) {
$validator = new Validator();
}
$this->validator = $validator;
}
/**
* Get the schema.
*
* @return JsonSchema The schema.
*/
public function get_schema() {
return $this->schema;
}
/**
* Create an ImportSchema instance from a file.
*
* @param string $file The file path.
* @return ImportSchema The created ImportSchema instance.
*
* @throws \RuntimeException If the JSON file cannot be read.
* @throws \InvalidArgumentException If the JSON is invalid or missing 'steps' field.
*/
public static function create_from_file( $file ) {
return self::create_from_json( $file );
}
/**
* Create an ImportSchema instance from a JSON file.
*
* @param string $json_path The JSON file path.
* @return ImportSchema The created ImportSchema instance.
*
* @throws \RuntimeException If the JSON file cannot be read.
* @throws \InvalidArgumentExcep