---
title: "contains(_:)"
framework: realitykit
role: symbol
role_heading: Instance Method
path: "realitykit/blendshapeweightsset/contains(_:)"
---

# contains(_:)

Checks if the set contains a blend shape weights data instance with the given name.

## Declaration

```swift
func contains(_ blendShapeName: String) -> Bool
```

## Parameters

- `blendShapeName`: The name of the blend shape to look up.

## Return Value

Return Value true blend shape weights data associated with the matching name is contained in the set.