update Gemini API : use thinking levels

copienator/gemini_config.py

@@ -0,0 +1,13 @@
+from google.genai import types
+
+
+def thinking_config(level: str | None) -> types.ThinkingConfig | None:
+    """Use a supported reasoning level, or omit it for the model default."""
+    if level is None:
+        return None
+    if level not in {"minimal", "low", "medium", "high"}:
+        raise ValueError(
+            f"Invalid Gemini thinking level {level!r}; "
+            'expected "minimal", "low", "medium", "high", or None'
+        )
+    return types.ThinkingConfig(thinking_level=level)