update openai function_call to tools

ai/agents/oai/completion.py

@@ -303,6 +303,18 @@ def _get_response(cls, config: Dict, raise_on_ratelimit_or_timeout=False, use_ca
                         del config['agent_name']
                     if "api_type" in config:
                         del config['api_type']
+
+                    tools = []
+                    if "functions" in config:
+                        functions = config.pop("functions")
+                        for function in functions:
+                            tools.append({
+                                "type": "function",
+                                "function": function
+                            })
+                    if len(tools) > 0:
+                        config['tools'] = tools
+
                     openai_completion = (
                         openai.ChatCompletion
                         if config["model"].replace("gpt-35-turbo", "gpt-3.5-turbo") in cls.chat_models
@@ -313,6 +325,14 @@ def _get_response(cls, config: Dict, raise_on_ratelimit_or_timeout=False, use_ca
                         response = openai_completion.create(**config)
                     else:
                         response = openai_completion.create(request_timeout=request_timeout, **config)
+                    if "tool_calls" in response.choices[0].message and len(response.choices[0].message.tool_calls) > 0:
+                        tool_calls = response.choices[0].message.pop("tool_calls")
+                        function_call = tool_calls[0]
+                        response.choices[0].message['function_call'] = {
+                            "name": function_call.function.name,
+                            "arguments": function_call.function.arguments
+                        }
+                        response.choices[0]['finish_reason'] = "function_call"
 
             except (
                 ServiceUnavailableError,