Optional
disableOptional. Deprecated. This option is no longer supported.
Optional
externalUse data source powered by external API for grounding.
Optional
vertexSet to use data source powered by Vertex AI Search.
Optional
vertexSet to use data source powered by Vertex RAG store. User data is uploaded via the VertexRagDataService.
Defines a retrieval tool that model can call to access external knowledge.