Get a list of ResponsiblePartyInfo objects. These link a Party (individual or organisation) to
a principal record type (e.g. Observation, Instrument, Project) and the role which the Party was
undertaking. Additionally, the priority value indicates an ordering that may be present for
that given role for the relatedTo object.

### Available end points:

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

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `role`
- `priority`

### How to use filters:

`/responsiblepartyinfos/?role=author`

`/responsiblepartyinfos.json?role=author`

GET /api/v2/rpis/101571/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 101571,
    "party": {
        "firstName": "Roy",
        "lastName": "Harrison",
        "partyType": "individual",
        "ob_id": 1736,
        "responsiblepartyinfo_set": [
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/101571/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/101911/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202147/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202151/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114492/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/55253/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/206947/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202160/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/206942/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129802/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/55257/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129642/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129769/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129780/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129791/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129813/?format=api",
            "https://api.catalogue.ceda.ac.uk/api/v2/rpis/214700/?format=api"
        ]
    },
    "relatedTo": {
        "ob_id": 24808,
        "uuid": "7ed9d8a288814b8b85433b0d3fec0300",
        "short_code": "proj"
    },
    "priority": 1,
    "role": "principal_investigator"
}