Fix: Handle dict input for tool arguments in call_tool

base_telegram_inference_bot.py

@@ -78,16 +78,30 @@ class BaseTelegramInferenceBot(ABC):
 
     def call_tool(self, function_call_name, function_call_arguments):
         function_name = function_call_name
+        function_args = None
+        if isinstance(function_call_arguments, dict):
+            function_args = function_call_arguments
+        elif isinstance(function_call_arguments, str):
             try:
-            function_args = json.loads(function_call_arguments if function_call_arguments is not None else "{}")
+                function_args = json.loads(function_call_arguments)
             except json.JSONDecodeError as e:
-            logging.error(f"Error decoding function call arguments for {function_call_name}: {e}. Arguments: {function_call_arguments}")
+                logging.error(f"Error decoding function call arguments (string) for {function_call_name}: {e}. Arguments: {function_call_arguments}")
                 return f"Error: Malformed arguments for tool call: {e}"
+        else: # Handle cases where arguments might be None or other unexpected types
+            if function_call_arguments is None:
+                function_args = {} # Default to empty dict if arguments are None
+            else:
+                logging.error(f"Unexpected type for function_call_arguments for {function_call_name}: {type(function_call_arguments)}. Arguments: {function_call_arguments}")
+                return f"Error: Invalid argument type for tool call: {type(function_call_arguments)}"
 
         for tool in self.tools:
             for function in tool.get_functions():
                 if function["function"]["name"] == function_name:
                     try:
+                        # Ensure function_args is a dictionary before unpacking
+                        if not isinstance(function_args, dict):
+                             logging.error(f"Internal error: function_args not a dict for {function_name} before execution. Args: {function_args}")
+                             return f"Internal error preparing arguments for tool {function_name}."
                         return tool.execute(function_name, **function_args)
                     except Exception as e:
                         logging.error(f"Error executing tool {function_name} with args {function_args}: {e}")