chore: Hide the ask_data_insights tool until the API is publicly available

PiperOrigin-RevId: 789418814

Author: google-genai-bot

contributing/samples/bigquery/README.md

@@ -25,16 +25,6 @@ distributed via the `google.adk.tools.bigquery` module. These tools include:
 
   Runs a SQL query in BigQuery.
 
-1. `ask_data_insights`
-
-  Natural language-in, natural language-out tool that answers questions
-  about structured data in BigQuery. Provides a one-stop solution for generating
-  insights from data.
-
-  **Note**: This tool requires additional setup in your project. Please refer to
-  the official [Conversational Analytics API documentation](https://cloud.google.com/gemini/docs/conversational-analytics-api/overview)
-  for instructions.
-
 ## How to use
 
 Set up environment variables in your `.env` file for using

src/google/adk/tools/bigquery/bigquery_toolset.py

@@ -21,7 +21,6 @@
 from google.adk.agents.readonly_context import ReadonlyContext
 from typing_extensions import override
 
-from . import data_insights_tool
 from . import metadata_tool
 from . import query_tool
 from ...tools.base_tool import BaseTool
@@ -79,7 +78,6 @@ async def get_tools(
             metadata_tool.list_dataset_ids,
             metadata_tool.list_table_ids,
             query_tool.get_execute_sql(self._tool_config),
-            data_insights_tool.ask_data_insights,
         ]
     ]