> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fiddler.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# StartSpanOptions

> Options for creating a new span via FiddlerClient.startSpan.

Options for creating a new span via FiddlerClient.startSpan.

## Properties

### `parent?: FiddlerSpan`

An existing span to use as the logical parent.

### `type?: SpanTypeValue`

The Fiddler span type (e.g. `"llm"`, `"tool"`, `"chain"`).