function rawEscape(code) {
    if (
      code === codes.leftParenthesis ||
      code === codes.rightParenthesis ||
      code === codes.backslash
    ) {
      effects.consume(code)
      return raw
    }

    return raw(code)
  }
After `\`, at special character.

```markdown
> | a\*a
      ^
```

@type {State}