List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=exclusivity&page=304
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=exclusivity&page=303",
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        {
            "id": 110439,
            "name": "ซ้อม12/9/66",
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            "description": "123456864221",
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            "is_open": true,
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                "id": 5893,
                "name": "Go Family",
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