{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/amazon-opensearch/refs/heads/main/json-structure/openapi-upgrade-step-structure.json",
  "name": "UpgradeStep",
  "description": "UpgradeStep schema from Amazon OpenSearch Service API",
  "type": "string",
  "enum": [
    "PRE_UPGRADE_CHECK",
    "SNAPSHOT",
    "UPGRADE"
  ]
}