src/PeekAndPoke/Component/Formal/Mapper/CommaSeparatedTagsMapper.php
public function mapToFrom($value)
    {
        return Psi::it(ArrayUtil::ensureArray($value))
            ->map(function ($v) {
                return $this->valueMapper->mapToFrom($v);
            })
            ->join($this->separator);
    }
public function mapToFrom($value)
    {
        return Psi::it(ArrayUtil::ensureArray($value))
            ->map(function ($v) {
                return $this->valueMapper->mapToFrom($v);
            })
            ->join($this->separator);
    }
@param mixed $value

@return mixed