{
  "type": "object",
  "properties": {
    "subject_digests": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "List of subject digests to fetch attestations for.",
      "minItems": 1,
      "maxItems": 1024
    },
    "predicate_type": {
      "type": "string",
      "description": "Optional filter for fetching attestations with a given predicate type.\nThis option accepts `provenance`, `sbom`, `release`, or freeform text\nfor custom predicate types."
    }
  },
  "required": [
    "subject_digests"
  ],
  "$schema": "https://json-schema.org/draft/2019-09/schema"
}