fix(anthropic): multi-function calling format

kani/engines/anthropic/engine.py

@@ -1,6 +1,7 @@
 import functools
 import itertools
 import json
+import logging
 import os
 import warnings
 from typing import AsyncIterable
@@ -25,6 +26,8 @@
     ("", 100000),
 ]
 
+log = logging.getLogger(__name__)
+
 
 # ==== pipe ====
 def content_transform(msg: ChatMessage):
@@ -237,7 +240,7 @@ def _prepare_request(messages, functions):
                     if isinstance(msg["content"], str):
                         prompt_msg_content.append({"type": "text", "text": msg["content"]})
                     else:
-                        prompt_msg_content.append(msg["content"])
+                        prompt_msg_content.extend(msg["content"])
                 # and output the final msg
                 prompt_msgs.append({"role": "user", "content": prompt_msg_content})
             # else send to output
@@ -250,6 +253,8 @@ def _prepare_request(messages, functions):
                 {"name": f.name, "description": f.desc, "input_schema": f.json_schema} for f in functions
             ]
 
+        log.debug(f"Claude message format: {prompt_msgs}")
+
         return kwargs, prompt_msgs
 
     def _translate_anthropic_message(self, message):