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# insertTextContainer(_:at:)

Inserts a text container at the specified index in the list of text containers.

```
func insertTextContainer(_ container: NSTextContainer, at index: Int)
```

## Parameters

`container`

The text container to insert.

`index`

The index in the series of text containers at which to insert `aTextContainer`.

## Discussion

This method invalidates layout for all subsequent `NSTextContainer` objects, and invalidates glyph information as needed.

---

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