Deprecate BuiltInCodeExecutionTool in favor of BuiltInCodeExecutor.

PiperOrigin-RevId: 758713057

src/google/adk/code_executors/__init__.py

@@ -15,16 +15,16 @@
 import logging
 
 from .base_code_executor import BaseCodeExecutor
+from .built_incode_executor import BuiltInCodeExecutor
 from .code_executor_context import CodeExecutorContext
-from .gemini_code_executor import GeminiCodeExecutor
 from .unsafe_local_code_executor import UnsafeLocalCodeExecutor
 
 logger = logging.getLogger(__name__)
 
 __all__ = [
     'BaseCodeExecutor',
+    'BuiltInCodeExecutor',
     'CodeExecutorContext',
-    'GeminiCodeExecutor',
     'UnsafeLocalCodeExecutor',
 ]
 

src/google/adk/code_executors/built_in_code_executor.py

@@ -23,8 +23,12 @@ from .code_execution_utils import CodeExecutionInput
 from .code_execution_utils import CodeExecutionResult
 
 
-class GeminiCodeExecutor(BaseCodeExecutor):
-  """A code executor for Gemini 2.0+ models to exeute code."""
+class BuiltInCodeExecutor(BaseCodeExecutor):
+  """A code executor that uses the Model's built-in code executor.
+
+  Currently only supports Gemini 2.0+ models, but will be expanded to
+  other models.
+  """
 
   @override
   def execute_code(