Audit fixes: export symbols and clean up imports

Author: Amaad Martin

core/src/common.ts

@@ -209,6 +209,10 @@ export type {
   ToolInputParameters,
   ToolOptions,
 } from './tools/function_tool.js';
+export {
+  GoogleSearchAgentTool,
+  createGoogleSearchAgent,
+} from './tools/google_search_agent_tool.js';
 export {GOOGLE_SEARCH, GoogleSearchTool} from './tools/google_search_tool.js';
 export {
   LOAD_ARTIFACTS,

core/src/tools/google_search_agent_tool.ts

@@ -35,7 +35,6 @@ export function createGoogleSearchAgent(model: string | BaseLlm): LlmAgent {
  * A tool that wraps a sub-agent that only uses google_search tool.
  *
  * This is a workaround to support using google_search tool with other tools.
- * @experimental
  */
 @experimental
 export class GoogleSearchAgentTool extends AgentTool {

core/test/tools/google_search_agent_tool_test.ts

@@ -5,24 +5,20 @@
  */
 
 import {
+  BaseLlm,
   BaseTool,
   Context,
   createEventActions,
+  createGoogleSearchAgent,
+  GOOGLE_SEARCH,
+  GoogleSearchAgentTool,
+  GoogleSearchTool,
   LlmAgent,
+  LlmRequest,
   Runner,
 } from '@google/adk';
 import {Tool} from '@google/genai';
 import {describe, expect, it, vi} from 'vitest';
-import {BaseLlm} from '../../src/models/base_llm.js';
-import {LlmRequest} from '../../src/models/llm_request.js';
-import {
-  createGoogleSearchAgent,
-  GoogleSearchAgentTool,
-} from '../../src/tools/google_search_agent_tool.js';
-import {
-  GOOGLE_SEARCH,
-  GoogleSearchTool,
-} from '../../src/tools/google_search_tool.js';
 
 vi.mock('../../src/runner/runner.js', async (importOriginal) => {
   const actual =