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# isExportableSignerAdapter

<Note>
  **This page has been updated for Wallets SDK V1.** If you are using the previous version,
  see the [previous version docs](/wallets/v0/overview) or the [V1 migration guide](/wallets/guides/migrate-to-v1).
</Note>

> **isExportableSignerAdapter**(`signer`): `signer is ExportableSignerAdapter`

Defined in: [packages/wallets/src/signers/types.ts:221](https://github.com/Crossmint/crossmint-sdk/blob/main/packages/wallets/src/signers/types.ts#L221)

## Parameters

| Parameter | Type                                           |
| --------- | ---------------------------------------------- |
| `signer`  | [`SignerAdapter`](../interfaces/SignerAdapter) |

## Returns

`signer is ExportableSignerAdapter`