I mean one option for what the character is (tab, space, or something else defined by the user), and a separate option specifying the number of said character.

In a separate class, this could look something akin to
```php
$serializer = new Serializer();
$serializer->setIndentString(' ');
$serializer->setIndent(4);
//so... indent with 4 spaces on every line

//Here's a new option I think may be useful under some scenarios!
//Whether or not the first line should be indented. Should probably be "true" by default.
$serializer->setIndentFirstLine(false);

echo $serializer->serialize($docblock);
```