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

# core::gas::gas_reserve_utilize

Adds the gas stored in the reserve back to the gas counter.
The reserve is consumed in the process.

## Signature

```rust theme={null}
pub extern fn gas_reserve_utilize(reserve: GasReserve) implicits(GasBuiltin) nopanic;
```