{
  "fields": [
    {
      "name": "stream_id",
      "nullable": true,
      "type": "int64"
    },
    {
      "name": "evidence_era",
      "nullable": true,
      "type": "string"
    },
    {
      "name": "spine_rows",
      "nullable": true,
      "type": "int64"
    },
    {
      "name": "spine_covered",
      "nullable": true,
      "type": "bool"
    },
    {
      "name": "poisoned",
      "nullable": true,
      "type": "bool"
    },
    {
      "name": "corpus_pages",
      "nullable": true,
      "type": "int64"
    },
    {
      "name": "corpus_errors",
      "nullable": true,
      "type": "int64"
    }
  ]
}