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    VertexAiSearchSpec(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Specification of the Vertex AI Search tool.

| ## Attributes ||
|---|---|
| **Name** | **Description** |
| `data_store_specs` | `MutableSequence[https://docs.cloud.google.com/python/docs/reference/discoveryengine/latest/google.cloud.discoveryengine_v1beta.types.SearchRequest.DataStoreSpec]` Optional. Specs defining DataStores to filter on in a search call and configurations for those data stores. This is only considered for Engines with multiple data stores. |
| `filter` | `str` Optional. The filter syntax consists of an expression language for constructing a predicate from one or more fields of the documents being filtered. Filter expression is case-sensitive. If this field is unrecognizable, an `INVALID_ARGUMENT` is returned. Filtering in Vertex AI Search is done by mapping the LHS filter key to a key property defined in the Vertex AI Search backend -- this mapping is defined by the customer in their schema. For example a media customer might have a field 'name' in their schema. In this case the filter would look like this: filter --\> name:'ANY("king kong")' For more information about filtering including syntax and filter operators, see `Filter `__ |