> ## Documentation Index
> Fetch the complete documentation index at: https://v2galileo-feat-update-docs-main-30571363885.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Span

***

# Type Alias: Span

```ts theme={null}
type Span = WorkflowSpan | AgentSpan | LlmSpan | RetrieverSpan | ToolSpan;
```

Defined in: [src/types/logging/span.types.ts](https://github.com/rungalileo/galileo-js/blob/main/src/types/logging/span.types.ts)