Bravo3\Orm\Mappers\Yaml\YamlMapper::getNode PHP Method

    protected function getNode($map, $node, $required = true, $default = null)
    {
        if (!is_array($map)) {
            throw new MappingViolationException("Metadata parse error: '" . $map . "' is not an array but should be");
        }
        if (!array_key_exists($node, $map)) {
            if ($required) {
                throw new MappingViolationException("Metadata parse error: " . $node . " is required but missing");
            }
            return $default;
        }
        return $map[$node];
    }