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

# IPatchworkSingleAssignable

> IPatchwork721 extension for contracts supporting Patchwork assignment

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    <span class="token keyword">import</span> <span class="token string">"@patchwork/contracts/PatchworkSingleAssignable/IPatchworkSingleAssignable.sol"</span><span class="token punctuation">;</span>
  </div>

  **Inherits:**
  [`IPatchworkAssignable`](/src/interfaces/IPatchworkAssignable.sol/interface.IPatchworkAssignable.md)
</Info>

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## Functions

***

### unassign

Unassigns a token

```solidity theme={null}
function unassign(uint256 ourTokenId) external;
```

**Parameters**

| Name         | Type      | Description     |
| ------------ | --------- | --------------- |
| `ourTokenId` | `uint256` | ID of our token |

### getAssignedTo

Returns the address and token ID that our token is assigned to

```solidity theme={null}
function getAssignedTo(uint256 ourTokenId) external view returns (address, uint256);
```

**Parameters**

| Name         | Type      | Description     |
| ------------ | --------- | --------------- |
| `ourTokenId` | `uint256` | ID of our token |

**Returns**

| Name     | Type      | Description                             |
| -------- | --------- | --------------------------------------- |
| `<none>` | `address` | address the address this is assigned to |
| `<none>` | `uint256` | uint256 the tokenId this is assigned to |

### unassignedOwnerOf

Returns the underlying stored owner of a token ignoring current assignment

```solidity theme={null}
function unassignedOwnerOf(uint256 ourTokenId) external view returns (address);
```

**Parameters**

| Name         | Type      | Description     |
| ------------ | --------- | --------------- |
| `ourTokenId` | `uint256` | ID of our token |

**Returns**

| Name     | Type      | Description                  |
| -------- | --------- | ---------------------------- |
| `<none>` | `address` | address address of the owner |

### onAssignedTransfer

Sends events for a token when the assigned-to token has been transferred

```solidity theme={null}
function onAssignedTransfer(address from, address to, uint256 tokenId) external;
```

**Parameters**

| Name      | Type      | Description       |
| --------- | --------- | ----------------- |
| `from`    | `address` | Sender address    |
| `to`      | `address` | Recipient address |
| `tokenId` | `uint256` | ID of the token   |

### updateOwnership

Updates the real underlying ownership of a token in storage (if different from current)

```solidity theme={null}
function updateOwnership(uint256 tokenId) external;
```

**Parameters**

| Name      | Type      | Description     |
| --------- | --------- | --------------- |
| `tokenId` | `uint256` | ID of the token |