Functions are never called

[evekeen]

I have an assistant with tools configured for a custom function. I've added debug, and I can see that the SDK receives different message types, however, there is never a "functionCall" there despite correctly receiving the tool_calls and even a conversation update with role="tool".

>> Received app message: speechUpdate
>> Received app message: transcript
>> Received app message: transcript
>> Received app message: conversationUpdate

{
    "role": "assistant",
    "content": "That's great.",
    "tool_calls":
    [
        {
            "type": "function",
            "id": "toolu_bdrk_0189gPszqD5ZombmVgS5z41f",
            "function":
            {
                "name": "start_exercise",
                "arguments": "{}"
            }
        }
    ]
}

>> Received app message: speechUpdate
>> Received app message: speechUpdate
>> Received app message: transcript
>> Received app message: conversationUpdate
>> Received app message: transcript
>> Received app message: conversationUpdate

{
    "role": "tool",
    "tool_call_id": "toolu_bdrk_0189gPszqD5ZombmVgS5z41f",
    "content": "Tool Result Still Pending But Proceed Further If Possible."
}

>> Received app message: transcript
>> Received app message: transcript
>> Received app message: transcript
>> Received app message: transcript
>> Received app message: conversationUpdate

Moreover, I had to change the ConversationUpdate type to support the "tool" role; otherwise, the JSON parsing would fail.