Wrong types in StreamedChatResponseV2 for Tool Calls

[adrianliechti]

After a short debugging, I believe this struct needs V2 structs for at least ToolCallStart & ToolCallDelta.
see also json field: tool_call vs tool_calls

type StreamedChatResponseV2 struct {
	Type          string
	MessageStart  *ChatMessageStartEvent
	ContentStart  *ChatContentStartEvent
	ContentDelta  *ChatContentDeltaEvent
	ContentEnd    *ChatContentEndEvent
	ToolPlanDelta *ChatToolPlanDeltaEvent
	ToolCallStart *ChatToolCallStartEvent // <-- 
	ToolCallDelta *ChatToolCallDeltaEvent // <--
	ToolCallEnd   *ChatToolCallEndEvent // <--
	CitationStart *CitationStartEvent
	CitationEnd   *CitationEndEvent
	MessageEnd    *ChatMessageEndEvent
}

[adrianliechti]

workaround:

parse the event delta as temporary message struct

var data struct {
  Message struct {
     ToolCalls *v2.ToolCallV2 `json:"tool_calls"`
  } `json:"message"`
}

json.Unmarshal([]byte(resp.ToolCallDelta.Delta.String()), &data)

[billytrend-cohere]

Investigating this thanks, @adrianliechti