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# Authorization.toTuple

:::info
`Authorization.toTuple` is a re-export of ox's [`Authorization.toTuple`](https://oxlib.sh/api/Authorization/toTuple). Refer to the ox documentation for the full reference.
:::

Converts an [`Authorization.Authorization`](/docs/utilities/authorization/types#authorization) to an [`Authorization.Tuple`](/docs/utilities/authorization/types#tuple).

## Imports

```ts
import { Authorization } from 'viem/utils'
```

## Examples

```ts twoslash
// @noErrors
import { Authorization } from 'viem/utils'

const authorization = Authorization.from({
  address: '0x1234567890abcdef1234567890abcdef12345678',
  chainId: 1,
  nonce: 69n
})

const tuple = Authorization.toTuple(authorization) // [!code focus]
// @log: [
// @log:   address: '0x1234567890abcdef1234567890abcdef12345678',
// @log:   chainId: 1,
// @log:   nonce: 69n,
// @log: ]
```

## Definition

```ts
function toTuple<authorization>(
  authorization: authorization,
): toTuple.ReturnType<authorization>
```

## Parameters

### authorization

* **Type:** `authorization`

The [`Authorization.Authorization`](/docs/utilities/authorization/types#authorization).

## Return Type

An [EIP-7702](https://eips.ethereum.org/EIPS/eip-7702) Authorization tuple.

`toTuple.ReturnType<authorization>`