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

# Signature

<Warning>
  **You are viewing docs for the previous version of the Wallets SDK.** We recommend upgrading to V1.
  See the [updated version of this page](/sdk-reference/wallets/typescript/type-aliases/Signature) or the [V1 migration guide](/wallets/guides/migrate-to-v1).
</Warning>

> **Signature**\<`TPrepareOnly`> = `TPrepareOnly` *extends* `true` ? `object` : `object`

Defined in: [packages/wallets/src/wallets/types.ts:178](https://github.com/Crossmint/crossmint-sdk/blob/main/packages/wallets/src/wallets/types.ts#L178)

## Type Parameters

| Type Parameter                     | Default type |
| ---------------------------------- | ------------ |
| `TPrepareOnly` *extends* `boolean` | `false`      |