Get a list of Party objects. Parties have a many to many mapping with a number of record types which
are listed through the responsiblepartyinfo end point as connected to via the
responsiblepartyinfo_set serialisation.

### Available end points:

- `/parties/` - Will list all Partys in the database
- `/parties.json` - Will return all Partys in json format
- `/parties/<object_id>/` - Returns Partys object with that id

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `firstName`
- `lastName`
- `partyType`

### How to use filters:

- `/parties/?firstName__contains=Graham`
- `/parties/?partyType=organisation`
- `/parties.json?lastName__endswith=(CEDA)`

GET /api/v2/parties/?format=api&offset=4800
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 4801,
    "next": null,
    "previous": "https://api.catalogue.ceda.ac.uk/api/v2/parties/?format=api&limit=100&offset=4700",
    "results": [
        {
            "firstName": "Charles",
            "lastName": "Chemel",
            "partyType": "individual",
            "ob_id": 5354,
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/217269/?format=api"
            ]
        }
    ]
}