> For the complete documentation index, see [llms.txt](https://stargateprotocol.gitbook.io/stargate/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://stargateprotocol.gitbook.io/stargate/developers/function-types.md).

# Function Types

Function types are used to by [`quoteLayerZeroFee()`](/stargate/developers/cross-chain-swap-fee.md) to get the cross chain message fee.

For standard a Stargate `swap()`, use function type = `1`

```javascript
// all function types
uint8 public constant TYPE_SWAP_REMOTE            = 1;
uint8 public constant TYPE_ADD_LIQUIDITY          = 2;
uint8 public constant TYPE_REDEEM_LOCAL_CALL_BACK = 3;
uint8 public constant TYPE_WITHDRAW_REMOTE        = 4;
```

\
Each of the above types corresponds to a function within Stargate that sends a cross chain message.

* Type 1: Used for `swap()`
* Type 2: Used for `addLiquidity()`
* Type 3: Used for the B->A portion of an A->B->A `withdrawLocal()`
* Type 4: Use to initiate a `withdrawLocal()`