> For the complete documentation index, see [llms.txt](https://contracts.synapseprotocol.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://contracts.synapseprotocol.com/bridge/erc20migrator.md).

# ERC20Migrator

## Methods

### legacyToken

```solidity
function legacyToken() external view returns (contract IERC20)
```

*Returns the legacy token that is being migrated.*

#### Returns

| Name | Type            | Description |
| ---- | --------------- | ----------- |
| \_0  | contract IERC20 | undefined   |

### migrate

```solidity
function migrate(uint256 amount) external nonpayable
```

*Transfers part of an account's balance in the old token to this contract, and mints the same amount of new tokens for that account.*

#### Parameters

| Name   | Type    | Description                     |
| ------ | ------- | ------------------------------- |
| amount | uint256 | amount of tokens to be migrated |

### newToken

```solidity
function newToken() external view returns (contract IERC20)
```

*Returns the new token to which we are migrating.*

#### Returns

| Name | Type            | Description |
| ---- | --------------- | ----------- |
| \_0  | contract IERC20 | undefined   |