List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-analysis_enabled&page=580
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=-analysis_enabled&page=579",
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            "id": 102198,
            "name": "👑9x9​ tournament​👑",
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                "summary": "<h1> Have fun :) <h1>",
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