---
title: "ExchangeAuthCodeForAPIKeyCodeChallengeMethod"
---

The method used to generate the code challenge

## Example Usage

```python
from openrouter.operations import ExchangeAuthCodeForAPIKeyCodeChallengeMethod

# Open enum: unrecognized values are captured as UnrecognizedStr
value: ExchangeAuthCodeForAPIKeyCodeChallengeMethod = "S256"
```


## Values

This is an open enum. Unrecognized values will not fail type checks.

- `"S256"`
- `"plain"`