getPermitSignature
Description:
Get permit signature for ERC20 token
Arguments:
| Name | Type | Required | Description | 
|---|---|---|---|
| contract | Erc20Abi | Yes | The ERC20 token contract | 
| ownerAddress | string | Yes | The user address | 
| spenderAddress | string | Yes | The address of the spender | 
Returns:
type Output = {
  amount: bigint
  deadline: number
  v: number
  r: string
  s: string
}
Example:
const permitParams = await sdk.utils.getPermitSignature({
  contract: sdk.contracts.tokens.mintToken,
  ownerAddress: '0x...',
  spenderAddress: '0x...',
})