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

# Unified Diff • AI Agent SDK

> unified_diff: Render a unified before/after diff for previewing the change.

# unified\_diff

Method

> This is a method of the [**ConfigDiff**](https://praison.ai/docs/sdk/reference/praisonaiagents/classes/ConfigDiff.md) class in the [**doctor\_protocol**](https://praison.ai/docs/sdk/reference/praisonaiagents/modules/doctor_protocol.md) module.

Render a unified before/after diff for previewing the change.

## Signature

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
def unified_diff() -> str
```

### Returns

**Returns** `str`

The result of the operation.

## Uses

* `splitlines`
* `json.dumps`
* `difflib.unified_diff`

## Used By

* [`ConfigDiff.unified_diff`](../functions/ConfigDiff-unified_diff)
* [`RepairPlan.render_diffs`](../functions/RepairPlan-render_diffs)

## Source

> [card] [View on GitHub](https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-agents/praisonaiagents/runtime/doctor_protocol.py#L32)
>
> `praisonaiagents/runtime/doctor_protocol.py` at line 32


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