# `MlModelSnapshotUpgrade` [interface-MlModelSnapshotUpgrade]

| Name | Type | Description |
| - | - | - |
| `assignment_explanation` | string |   |
| `job_id` | [Id](./Id.md) |   |
| `node` | [MlDiscoveryNode](./MlDiscoveryNode.md) |   |
| `snapshot_id` | [Id](./Id.md) |   |
| `state` | [MlSnapshotUpgradeState](./MlSnapshotUpgradeState.md) |   |