package main import ( "context" "github.com/openai/openai-go" ) // Mock function to simulate weather data retrieval func getWeather(location string) string { // In a real implementation, this function would call a weather API return "Sunny, 25°C" } func main() { client := openai.NewClient() ctx := context.Background() question := "Begin a very brief introduction of Greece, then incorporate the local weather of a few towns" print("> ") println(question) println() params := openai.ChatCompletionNewParams{ Messages: openai.F([]openai.ChatCompletionMessageParamUnion{ openai.UserMessage(question),	}), Seed: openai.Int(0), Model: openai.F(openai.ChatModelGPT4o), Tools: openai.F([]openai.ChatCompletionToolParam{	{ Type: openai.F(openai.ChatCompletionToolTypeFunction), Function: openai.F(openai.FunctionDefinitionParam{ Name: openai.String("get_live_weather"), Description: openai.String("Get weather at the given location"), Parameters: openai.F(openai.FunctionParameters{ "type": "object", "properties": map[string]interface{}{ "location": map[string]string{ "type": "string",	},	}, "required": []string{"location"},	}),	}),	},	}),	} stream := client.Chat.Completions.NewStreaming(ctx, params) acc := openai.ChatCompletionAccumulator{} for stream.Next() { chunk := stream.Current() acc.AddChunk(chunk) // When this fires, the current chunk value will not contain content data if content, ok := acc.JustFinishedContent(); ok { println("Content stream finished:", content) println()	} if tool, ok := acc.JustFinishedToolCall(); ok { println("Tool call stream finished:", tool.Index, tool.Name, tool.Arguments) println()	} if refusal, ok := acc.JustFinishedRefusal(); ok { println("Refusal stream finished:", refusal) println()	} // It's best to use chunks after handling JustFinished events if len(chunk.Choices) > 0 { println(chunk.Choices[0].Delta.JSON.RawJSON())	}	} if err := stream.Err(); err != nil { panic(err)	} // After the stream is finished, acc can be used like a ChatCompletion _ = acc.Choices[0].Message.Content println("Total Tokens:", acc.Usage.TotalTokens) println("Finish Reason:", acc.Choices[0].FinishReason) }