---
title: BaseResponse
seo:
  title: BaseResponse — Python SDK
  description: Base class for all scorer response types. (Python SDK)
description: Base class for all scorer response types.
---

You don't use this directly -- use `BinaryResponse`, `NumericResponse`,
or a `CategoricalResponse` subclass instead.

## Attributes

| Prop | Type | Default | Description |
| - | - | - | - |
| `value?` | `Union[bool, str, float]` | - | The score (bool, str, or float depending on type). |
| `reason?` | `str` | - | Explanation of why this score was given. |
| `citations?` | `Optional[List[Citation]]` | `None` | Optional references to specific trace spans. |