---
title: "subscript(_:_:)"
framework: coreai
role: symbol
role_heading: Instance Subscript
path: "coreai/aimodelasset/metadata-swift.struct/subscript(_:_:)-6bxrd"
---

# subscript(_:_:)

Accesses a custom metadata number value for the specified key.

## Declaration

```swift
subscript(key: String, type: Double.Type = Double.self) -> Double? { get set }
```

## See Also

### Accessing creator-defined metadata

- [creatorDefinedMetadata](coreai/aimodelasset/metadata-swift.struct/creatordefinedmetadata.md)
- [subscript(_:_:)](coreai/aimodelasset/metadata-swift.struct/subscript(_:_:)-44ov4.md)
- [subscript(_:_:)](coreai/aimodelasset/metadata-swift.struct/subscript(_:_:)-50v52.md)
- [subscript(_:_:)](coreai/aimodelasset/metadata-swift.struct/subscript(_:_:)-5o1kb.md)
- [subscript(_:_:)](coreai/aimodelasset/metadata-swift.struct/subscript(_:_:)-5se5j.md)
- [subscript(_:_:)](coreai/aimodelasset/metadata-swift.struct/subscript(_:_:)-9hpy0.md)