# Trace

`import { Trace } from "destack:runtime";`

Trace state for one world.

```ds title="Trace"
export struct Trace {
    branch: BranchId;
    sequence: TraceSequence;
}
```

[language/library/src/runtime/trace.ds:24:29](https://github.com/destack-sh/destack/blob/main/language/library/src/runtime/trace.ds#L24-L29)

## Members

### `branch: BranchId`

Active branch.

### `sequence: TraceSequence`

Current trace sequence boundary.