sentry/api-docs/components/schemas/null.json

{
  "NullValue": {
    "type": "string",
    "nullable": true,
    "not": {
      "anyOf": [
        { "type": "string" },
        { "type": "number" },
        { "type": "boolean" },
        { "type": "object" },
        {
          "type": "array",
          "items": {}
        }
      ]
    }
  }
}