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# isValid(within:)

Indicates whether the range is valid for use with the provided discontiguous attributed string.

```
func isValid(within text: DiscontiguousAttributedSubstring) -> Bool
```

## Parameters

`text`

A discontiguous attributed string used to validate the range.

## Return Value

`true` when the range is valid for use with the provided discontiguous attributed string; otherwise, false. A range is valid if its lower and upper bounds are each either valid in the discontiguous attributed string or equivalent to the string’s `endIndex`.

---

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