Python: feat: add thinking_level support for Gemini in Python

python/semantic_kernel/connectors/ai/google/google_ai/google_ai_prompt_execution_settings.py

@@ -18,6 +18,21 @@ class GoogleAIPromptExecutionSettings(PromptExecutionSettings):
     temperature: Annotated[float | None, Field(ge=0.0, le=2.0)] = None
     top_p: float | None = None
     top_k: int | None = None
+    thinking_level: Literal["minimal", "low", "medium", "high"] | str | None = None
+
+    def prepare_settings_dict(self, **kwargs) -> dict[str, Any]:
+        """Prepare the settings as a dictionary for sending to the AI service.
+
+        This method extracts the thinking_level from the settings dictionary
+        and maps it to the thinking_config expected by the Google AI SDK.
+        """
+        settings_dict = super().prepare_settings_dict(**kwargs)
+
+        thinking_level = settings_dict.pop("thinking_level", None)
+        if thinking_level:
+            settings_dict["thinking_config"] = {"thinking_level": thinking_level}
+
+        return settings_dict
 
 
 class GoogleAITextPromptExecutionSettings(GoogleAIPromptExecutionSettings):

python/tests/unit/connectors/ai/google/google_ai/test_google_ai_request_settings.py

@@ -131,3 +131,24 @@ def test_default_google_ai_embedding_prompt_execution_settings():
     settings = GoogleAIEmbeddingPromptExecutionSettings()
 
     assert settings.output_dimensionality is None
+
+
+def test_google_ai_prompt_execution_settings_thinking_level():
+    settings = GoogleAIPromptExecutionSettings(thinking_level="high")
+    assert settings.thinking_level == "high"
+
+
+def test_google_ai_prompt_execution_settings_thinking_level_mapping():
+    settings = GoogleAIPromptExecutionSettings(thinking_level="medium")
+    settings_dict = settings.prepare_settings_dict()
+
+    assert "thinking_level" not in settings_dict
+    assert settings_dict["thinking_config"] == {"thinking_level": "medium"}
+
+
+def test_google_ai_prompt_execution_settings_no_thinking_level():
+    settings = GoogleAIPromptExecutionSettings(temperature=0.5)
+    settings_dict = settings.prepare_settings_dict()
+
+    assert "thinking_level" not in settings_dict
+    assert "thinking_level" not in settings_dict.get("thinking_config", {})