## Interface `MigrationGetFeatureUpgradeStatusMigrationFeatureIndexInfo`

| Name | Type | Description |
| - | - | - |
| `failure_cause` | [ErrorCause](./ErrorCause.md) |   |
| `index` | [IndexName](./IndexName.md) |   |
| `version` | [VersionString](./VersionString.md) |   |