# CrystalFeesUpgradeable

*Frisky Fox - Defi Kingdoms*

> CrystalFees

*Functionality that supports paying fees.*

## Methods

### crystalToken

```solidity
function crystalToken() external view returns (contract IERC20Upgradeable)
```

CONTRACTS ///

#### Returns

| Name | Type                       | Description |
| ---- | -------------------------- | ----------- |
| \_0  | contract IERC20Upgradeable | undefined   |

### feeAddresses

```solidity
function feeAddresses(uint256) external view returns (address)
```

STATE ///

#### Parameters

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

#### Returns

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

### feePercents

```solidity
function feePercents(uint256) external view returns (uint256)
```

#### Parameters

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

#### Returns

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

### setFees

```solidity
function setFees(address[] _feeAddresses, uint256[] _feePercents) external nonpayable
```

#### Parameters

| Name           | Type       | Description |
| -------------- | ---------- | ----------- |
| \_feeAddresses | address\[] | undefined   |
| \_feePercents  | uint256\[] | undefined   |