feat(function call): complete utility method for KimiK2Detector and enhance documentation (#8043)

python/sglang/srt/function_call/pythonic_detector.py

@@ -19,10 +19,17 @@ logger = logging.getLogger(__name__)
 
 class PythonicDetector(BaseFormatDetector):
     """
-    Detector for Llama-3.2 and Llama-4 models with pythonic tool call format.
-    Assumes function call format:
-      [tool1(arg1=val1, arg2=val2), tool2(arg1=val3)]
-    Arguments are Python literals (not JSON).
+    Detector for Llama-4 models with Pythonic tool call format.
+
+    The Pythonic format uses Python function call syntax within square brackets,
+    with arguments as Python literals rather than JSON.
+
+    Format Structure:
+    ```
+    [tool1(arg1=val1, arg2=val2), tool2(arg1=val3)]
+    ```
+
+    Reference: https://huggingface.co/meta-llama/Llama-4-Scout-17B-16E-Instruct?chat_template=default
     """
 
     def __init__(self):
@@ -75,11 +82,7 @@ class PythonicDetector(BaseFormatDetector):
                 return StreamingParseResult(normal_text=normal_text, calls=[])
 
             calls = []
-            tool_indices = {
-                tool.function.name: i
-                for i, tool in enumerate(tools)
-                if tool.function.name
-            }
+            tool_indices = self._get_tool_indices(tools)
             for call_index, call in enumerate(parsed.elts):
                 if not isinstance(call.func, ast.Name):
                     continue