import { BaseTool } from './BaseTool';
import { ToolContext } from './ToolContext';
/**
 * Options for the Vertex AI Search tool
 */
export interface VertexAISearchToolOptions {
    /**
     * The Vertex AI search data store resource ID in the format of
     * "projects/{project}/locations/{location}/collections/{collection}/dataStores/{dataStore}".
     */
    dataStoreId?: string;
    /**
     * The Vertex AI search engine resource ID in the format of
     * "projects/{project}/locations/{location}/collections/{collection}/engines/{engine}".
     */
    searchEngineId?: string;
}
/**
 * A built-in tool that uses Vertex AI Search.
 */
export declare class VertexAISearchTool extends BaseTool {
    /**
     * The Vertex AI search data store resource ID
     */
    private dataStoreId?;
    /**
     * The Vertex AI search engine resource ID
     */
    private searchEngineId?;
    /**
     * Create a new Vertex AI Search tool
     *
     * @param options Options for the Vertex AI Search tool
     */
    constructor(options: VertexAISearchToolOptions);
    /**
     * Process the LLM request to enable Vertex AI Search capability
     *
     * @param params Parameters for processing
     * @param params.toolContext The tool context
     * @param params.llmRequest The LLM request to process
     */
    processLlmRequest({ toolContext, llmRequest }: {
        toolContext: ToolContext;
        llmRequest: any;
    }): Promise<void>;
    /**
     * Execute the Vertex AI Search tool
     *
     * This is a placeholder as the actual execution happens internally in the model.
     *
     * @param params The parameters for tool execution
     * @param context The context for tool execution
     * @returns A placeholder response
     */
    execute(params: Record<string, any>, context: ToolContext): Promise<any>;
}
/**
 * Creates a new Vertex AI Search tool with the provided data store ID
 *
 * @param dataStoreId The Vertex AI search data store resource ID
 * @returns A new Vertex AI Search tool instance
 */
export declare function createVertexAISearchToolWithDataStore(dataStoreId: string): VertexAISearchTool;
/**
 * Creates a new Vertex AI Search tool with the provided search engine ID
 *
 * @param searchEngineId The Vertex AI search engine resource ID
 * @returns A new Vertex AI Search tool instance
 */
export declare function createVertexAISearchToolWithEngine(searchEngineId: string): VertexAISearchTool;