How to prevent escaped newlines from being used?

**Is there a way to force the formatted yaml to not have `\n` sequences in the strings?**

e.g.

Input:
```yaml
foo: "First line.\nSecond line.\n"
```

Desired output:
```yaml
foo: |
First line.
Second line.

```

The content of the string itself has not changed, if I am not mistaken.