## Mutable


A mutable record that also defines methods.


Usage


``` python
Mutable(
    label,
    count=0,
)
```


## Parameters


`label: str`  
Human-readable label.

`count: int = ``0`  
Current count.


## Methods

| Name | Description |
|----|----|
| [empty()](#empty) | Create an empty record. |
| [increment()](#increment) | Increase the count. |

------------------------------------------------------------------------


#### empty()


Create an empty record.


Usage


``` python
empty()
```


------------------------------------------------------------------------


#### increment()


Increase the count.


Usage


``` python
increment(by=1)
```