---
title: BarcodeObservation.CompositeType.gs1TypeB
framework: vision
role: symbol
role_heading: Case
path: vision/barcodeobservation/compositetype/gs1typeb
---

# BarcodeObservation.CompositeType.gs1TypeB

A type that represents trade items by piece.

## Declaration

```swift
case gs1TypeB
```

## See Also

### Getting the composite types

- [BarcodeObservation.CompositeType.gs1TypeA](vision/barcodeobservation/compositetype/gs1typea.md)
- [BarcodeObservation.CompositeType.gs1TypeC](vision/barcodeobservation/compositetype/gs1typec.md)
- [BarcodeObservation.CompositeType.linked](vision/barcodeobservation/compositetype/linked.md)