# ERC 721 Pausable Upgradeable

*ERC721 token with pausable token transfers, minting and burning. Useful for scenarios such as preventing trades until the end of an evaluation period, or having an emergency switch for freezing all token transfers in the event of a large bug.*

## Methods

### approve

```solidity
function approve(address to, uint256 tokenId) external nonpayable
```

*See {IERC721-approve}.*

#### Parameters

| Name    | Type    | Description |
| ------- | ------- | ----------- |
| to      | address | undefined   |
| tokenId | uint256 | undefined   |

### balanceOf

```solidity
function balanceOf(address owner) external view returns (uint256)
```

*See {IERC721-balanceOf}.*

#### Parameters

| Name  | Type    | Description |
| ----- | ------- | ----------- |
| owner | address | undefined   |

#### Returns

| Name | Type    | Description |
| ---- | ------- | ----------- |
| \_0  | uint256 | undefined   |

### getApproved

```solidity
function getApproved(uint256 tokenId) external view returns (address)
```

*See {IERC721-getApproved}.*

#### Parameters

| Name    | Type    | Description |
| ------- | ------- | ----------- |
| tokenId | uint256 | undefined   |

#### Returns

| Name | Type    | Description |
| ---- | ------- | ----------- |
| \_0  | address | undefined   |

### isApprovedForAll

```solidity
function isApprovedForAll(address owner, address operator) external view returns (bool)
```

*See {IERC721-isApprovedForAll}.*

#### Parameters

| Name     | Type    | Description |
| -------- | ------- | ----------- |
| owner    | address | undefined   |
| operator | address | undefined   |

#### Returns

| Name | Type | Description |
| ---- | ---- | ----------- |
| \_0  | bool | undefined   |

### name

```solidity
function name() external view returns (string)
```

*See {IERC721Metadata-name}.*

#### Returns

| Name | Type   | Description |
| ---- | ------ | ----------- |
| \_0  | string | undefined   |

### ownerOf

```solidity
function ownerOf(uint256 tokenId) external view returns (address)
```

*See {IERC721-ownerOf}.*

#### Parameters

| Name    | Type    | Description |
| ------- | ------- | ----------- |
| tokenId | uint256 | undefined   |

#### Returns

| Name | Type    | Description |
| ---- | ------- | ----------- |
| \_0  | address | undefined   |

### paused

```solidity
function paused() external view returns (bool)
```

*Returns true if the contract is paused, and false otherwise.*

#### Returns

| Name | Type | Description |
| ---- | ---- | ----------- |
| \_0  | bool | undefined   |

### safeTransferFrom

```solidity
function safeTransferFrom(address from, address to, uint256 tokenId) external nonpayable
```

*See {IERC721-safeTransferFrom}.*

#### Parameters

| Name    | Type    | Description |
| ------- | ------- | ----------- |
| from    | address | undefined   |
| to      | address | undefined   |
| tokenId | uint256 | undefined   |

### safeTransferFrom

```solidity
function safeTransferFrom(address from, address to, uint256 tokenId, bytes _data) external nonpayable
```

*See {IERC721-safeTransferFrom}.*

#### Parameters

| Name    | Type    | Description |
| ------- | ------- | ----------- |
| from    | address | undefined   |
| to      | address | undefined   |
| tokenId | uint256 | undefined   |
| \_data  | bytes   | undefined   |

### setApprovalForAll

```solidity
function setApprovalForAll(address operator, bool approved) external nonpayable
```

*See {IERC721-setApprovalForAll}.*

#### Parameters

| Name     | Type    | Description |
| -------- | ------- | ----------- |
| operator | address | undefined   |
| approved | bool    | undefined   |

### supportsInterface

```solidity
function supportsInterface(bytes4 interfaceId) external view returns (bool)
```

*See {IERC165-supportsInterface}.*

#### Parameters

| Name        | Type   | Description |
| ----------- | ------ | ----------- |
| interfaceId | bytes4 | undefined   |

#### Returns

| Name | Type | Description |
| ---- | ---- | ----------- |
| \_0  | bool | undefined   |

### symbol

```solidity
function symbol() external view returns (string)
```

*See {IERC721Metadata-symbol}.*

#### Returns

| Name | Type   | Description |
| ---- | ------ | ----------- |
| \_0  | string | undefined   |

### tokenURI

```solidity
function tokenURI(uint256 tokenId) external view returns (string)
```

*See {IERC721Metadata-tokenURI}.*

#### Parameters

| Name    | Type    | Description |
| ------- | ------- | ----------- |
| tokenId | uint256 | undefined   |

#### Returns

| Name | Type   | Description |
| ---- | ------ | ----------- |
| \_0  | string | undefined   |

### transferFrom

```solidity
function transferFrom(address from, address to, uint256 tokenId) external nonpayable
```

*See {IERC721-transferFrom}.*

#### Parameters

| Name    | Type    | Description |
| ------- | ------- | ----------- |
| from    | address | undefined   |
| to      | address | undefined   |
| tokenId | uint256 | undefined   |

## Events

### Approval

```solidity
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId)
```

#### Parameters

| Name               | Type    | Description |
| ------------------ | ------- | ----------- |
| owner `indexed`    | address | undefined   |
| approved `indexed` | address | undefined   |
| tokenId `indexed`  | uint256 | undefined   |

### ApprovalForAll

```solidity
event ApprovalForAll(address indexed owner, address indexed operator, bool approved)
```

#### Parameters

| Name               | Type    | Description |
| ------------------ | ------- | ----------- |
| owner `indexed`    | address | undefined   |
| operator `indexed` | address | undefined   |
| approved           | bool    | undefined   |

### Paused

```solidity
event Paused(address account)
```

#### Parameters

| Name    | Type    | Description |
| ------- | ------- | ----------- |
| account | address | undefined   |

### Transfer

```solidity
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId)
```

#### Parameters

| Name              | Type    | Description |
| ----------------- | ------- | ----------- |
| from `indexed`    | address | undefined   |
| to `indexed`      | address | undefined   |
| tokenId `indexed` | uint256 | undefined   |

### Unpaused

```solidity
event Unpaused(address account)
```

#### Parameters

| Name    | Type    | Description |
| ------- | ------- | ----------- |
| account | address | undefined   |