Description:
------------
Currently the class synopsis looks like this:

```
Ds\Pair implements JsonSerializable {

    /* Methods */
    public __construct ([ mixed $key [, mixed $value ]] )
}
```

It should look like this:

```
Ds\Pair implements JsonSerializable {


    /* Properties */
    public mixed $key ;
    public mixed $value ;

    /* Methods */
    public __construct ([ mixed $key [, mixed $value ]] )
}
```