> ## Documentation Index
> Fetch the complete documentation index at: https://starkware-9575960b-chore-starknet-docs-url-migration.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# core::bytes_31::bytes31

Represents a 31-byte fixed-size byte type.

## Signature

```rust theme={null}
pub extern type bytes31;
```