# WHMCS\UsageBilling\Metrics\Usage

`Class` · implements `UsageInterface`

Usage

## Methods

### __construct

```php
public function __construct($value, $collectedAt = null, $startAt = null, $endAt = null)
```

Usage constructor.

**Parameters**

| Type | Name | Description |
|  --- | --- | --- |
| `null|Carbon|float|int` | `$collectedAt` |  |
| `null|Carbon|float|int` | `$startAt` |  |
| `null|Carbon|float|int` | `$endAt` |  |


### collectedAt

```php
public function collectedAt()
```

### startAt

```php
public function startAt()
```

### endAt

```php
public function endAt()
```

### value

```php
public function value()
```