# `MsearchMultisearchHeader` [interface-MsearchMultisearchHeader]

| Name | Type | Description |
| - | - | - |
| `allow_no_indices` | boolean |   |
| `allow_partial_search_results` | boolean |   |
| `ccs_minimize_roundtrips` | boolean |   |
| `expand_wildcards` | [ExpandWildcards](./ExpandWildcards.md) |   |
| `ignore_throttled` | boolean |   |
| `ignore_unavailable` | boolean |   |
| `index` | [Indices](./Indices.md) |   |
| `preference` | string |   |
| `request_cache` | boolean |   |
| `routing` | [Routing](./Routing.md) |   |
| `search_type` | [SearchType](./SearchType.md) |   |