---
title: SecTransformMetaAttributeType.stream
framework: security
role: symbol
role_heading: Case
path: security/sectransformmetaattributetype/stream
---

# SecTransformMetaAttributeType.stream

The attribute expects stream operation.

## Declaration

```swift
case stream
```

## Discussion

Discussion Specifies if the attribute should expect a series of values ending with a NULL to specify the end of the data stream. This metadata has a default value of true for the input and output attributes, but is false for all other attributes.