Transformer/SprintfTransformer.php
public function transform($value, array $options = [])
    {
        if (!\is_array($value)) {
            $value = [$value];
        }

        return vsprintf($options['format'], $value);
    }
public function transform($value, array $options = [])
    {
        if (!\is_array($value)) {
            $value = [$value];
        }

        return vsprintf($options['format'], $value);
    }
{@inheritDoc}
@throws \UnexpectedValueException