/**
* @inheritdoc
* @return self
*/
public function flatten()
{
return __CONTRACT__::contentIsA(static::rootType(), $this->value);
}
/**
* @inheritdoc
* @return Exclusive
*/
public function flatten()
{
return __CONTRACT__::contentIsA(Exclusive::class, $this->value);
}
/**
* @return self
* @throws \UnexpectedValueException if the data-set could not be flattened
*/
public function flatten()
{
return __CONTRACT__::contentIsA(self::class, $this->contents);
}
