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4 changes: 3 additions & 1 deletion units/ko/_toctree.yml
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- title: Bonus Unit 1. Fine-tuning an LLM for Function-calling
sections:
- local: bonus-unit1/introduction
title: Introduction
title: Introduction
- local: bonus-unit1/what-is-function-calling
title: What is Function Calling?
76 changes: 76 additions & 0 deletions units/ko/bonus-unit1/what-is-function-calling.mdx
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@@ -0,0 +1,76 @@
# ํ•จ์ˆ˜ ํ˜ธ์ถœ์ด๋ž€ ๋ฌด์—‡์ธ๊ฐ€[[what-is-function-calling]]

ํ•จ์ˆ˜ ํ˜ธ์ถœ์€ **LLM์ด ํ™˜๊ฒฝ๊ณผ ์ƒํ˜ธ์ž‘์šฉํ•˜์—ฌ ๋™์ž‘์„ ์ˆ˜ํ–‰ํ•˜๋Š” ๋ฐฉ๋ฒ•**์ž…๋‹ˆ๋‹ค. ์ฒ˜์Œ์—๋Š” [GPT-4์—์„œ ๋„์ž…๋˜์—ˆ์œผ๋ฉฐ](https://openai.com/index/function-calling-and-other-api-updates/), ์ดํ›„ ๋‹ค๋ฅธ ๋ชจ๋ธ์—์„œ๋„ ๊ตฌํ˜„๋˜์—ˆ์Šต๋‹ˆ๋‹ค.

์—์ด์ „ํŠธ์˜ ๋„๊ตฌ์ฒ˜๋Ÿผ, ํ•จ์ˆ˜ ํ˜ธ์ถœ์€ ๋ชจ๋ธ์—๊ฒŒ **์ฃผ์–ด์ง„ ํ™˜๊ฒฝ์—์„œ ๋™์ž‘์„ ์ˆ˜ํ–‰ํ•  ์ˆ˜ ์žˆ๋Š” ์—ญ๋Ÿ‰**์„ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค. ๋‹ค๋งŒ ํ•จ์ˆ˜ ํ˜ธ์ถœ ์—ญ๋Ÿ‰์€ **๋ชจ๋ธ์ด ํ•™์Šต์„ ํ†ตํ•ด ๋‚ด์žฌํ™”ํ•œ ๊ฒƒ์ด๋ฉฐ**, ๋‹ค๋ฅธ ์—์ด์ „ํŠธ ๊ธฐ๋ฒ•๋“ค๋ณด๋‹ค **ํ”„๋กฌํ”„ํŠธ์— ์˜์กดํ•˜๋Š” ์ •๋„๊ฐ€ ๋‚ฎ์Šต๋‹ˆ๋‹ค.**

Unit 1์—์„œ๋Š” ์—์ด์ „ํŠธ๊ฐ€ **๋„๊ตฌ๋ฅผ ํ•™์Šตํ•ด์„œ ์‚ฌ์šฉํ•œ ๊ฒƒ์€ ์•„๋‹ˆ๋ฉฐ**, ์šฐ๋ฆฌ๋Š” ๋‹จ์ง€ ๋„๊ตฌ ๋ชฉ๋ก์„ ์ œ๊ณตํ–ˆ๊ณ , ๋ชจ๋ธ์ด **์ด ๋„๊ตฌ๋“ค์„ ํ™œ์šฉํ•ด ๊ณ„ํš์„ ์ผ๋ฐ˜ํ™”ํ•  ์ˆ˜ ์žˆ๋‹ค๋Š” ์ **์— ์˜์กดํ–ˆ์Šต๋‹ˆ๋‹ค.

์—ฌ๊ธฐ์„œ๋Š” **ํ•จ์ˆ˜ ํ˜ธ์ถœ์„ ํ†ตํ•ด ์—์ด์ „ํŠธ๊ฐ€ ๋„๊ตฌ๋ฅผ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๋„๋ก ๋ฏธ์„ธ ์กฐ์ •(ํ•™์Šต)**ํ•ฉ๋‹ˆ๋‹ค.

## ๋ชจ๋ธ์€ ๋™์ž‘ ์ˆ˜ํ–‰์„ ์–ด๋–ป๊ฒŒ "ํ•™์Šต"ํ• ๊นŒ์š”?[[how-does-the-model-learn-to-take-an-action]]

Unit 1์—์„œ๋Š” ์—์ด์ „ํŠธ์˜ ์ผ๋ฐ˜์ ์ธ ์›Œํฌํ”Œ๋กœ์šฐ๋ฅผ ์‚ดํŽด๋ณด์•˜์Šต๋‹ˆ๋‹ค. ์‚ฌ์šฉ์ž๊ฐ€ ์—์ด์ „ํŠธ์— ๋„๊ตฌ๋ฅผ ์ œ๊ณตํ•˜๊ณ  ์งˆ์˜๋ฅผ ์ „๋‹ฌํ•˜๋ฉด, ๋ชจ๋ธ์€ ๋‹ค์Œ ๊ณผ์ •์„ ์ˆœํ™˜ํ•ฉ๋‹ˆ๋‹ค:

1. *Think* : ๋ชฉํ‘œ๋ฅผ ๋‹ฌ์„ฑํ•˜๊ธฐ ์œ„ํ•ด ์–ด๋–ค ๋™์ž‘์„ ์ˆ˜ํ–‰ํ•ด์•ผ ํ• ์ง€ ๊ณ ๋ฏผํ•ฉ๋‹ˆ๋‹ค.
2. *Act* : ์˜ฌ๋ฐ”๋ฅธ ๋งค๊ฐœ๋ณ€์ˆ˜๋กœ ๋™์ž‘์„ ํฌ๋งทํ•˜๊ณ  ์ƒ์„ฑ์„ ์ค‘๋‹จํ•ฉ๋‹ˆ๋‹ค.
3. *Observe* : ์‹คํ–‰ ๊ฒฐ๊ณผ๋ฅผ ๋ฐ›์•„์˜ต๋‹ˆ๋‹ค.

API๋ฅผ ํ†ตํ•œ โ€œ์ผ๋ฐ˜์ ์ธโ€ ๋Œ€ํ™”์—์„œ๋Š”, ์•„๋ž˜์™€ ๊ฐ™์ด "user"์™€ "assistant" ๋ฉ”์‹œ์ง€๊ฐ€ ๋ฒˆ๊ฐˆ์•„ ๋‚˜ํƒ€๋‚ฉ๋‹ˆ๋‹ค.

```python
conversation = [
{"role": "user", "content": "I need help with my order"},
{"role": "assistant", "content": "I'd be happy to help. Could you provide your order number?"},
{"role": "user", "content": "It's ORDER-123"},
]
```

ํ•จ์ˆ˜ ํ˜ธ์ถœ์€ ๋Œ€ํ™”์— **์ƒˆ๋กœ์šด ์—ญํ• **์„ ์ถ”๊ฐ€ํ•ฉ๋‹ˆ๋‹ค!

1. **Action**์„ ์œ„ํ•œ ์ƒˆ๋กœ์šด ์—ญํ• 
2. **Observation**์„ ์œ„ํ•œ ์ƒˆ๋กœ์šด ์—ญํ• 

[Mistral API](https://docs.mistral.ai/capabilities/function_calling/)๋ฅผ ์˜ˆ๋กœ ๋“ค๋ฉด, ๋‹ค์Œ๊ณผ ๊ฐ™์Šต๋‹ˆ๋‹ค:

```python
conversation = [
{
"role": "user",
"content": "What's the status of my transaction T1001?"
},
{
"role": "assistant",
"content": "",
"function_call": {
"name": "retrieve_payment_status",
"arguments": "{\"transaction_id\": \"T1001\"}"
}
},
{
"role": "tool",
"name": "retrieve_payment_status",
"content": "{\"status\": \"Paid\"}"
},
{
"role": "assistant",
"content": "Your transaction T1001 has been successfully paid."
}
]
```
> ...ํ•˜์ง€๋งŒ ํ•จ์ˆ˜ ํ˜ธ์ถœ์— ์ƒˆ๋กœ์šด ์—ญํ• ์ด ์žˆ๋‹ค๊ณ  ํ–ˆ๋‚˜์š”?

**๊ทธ๋ ‡๊ธฐ๋„ ํ•˜๊ณ  ์•„๋‹ˆ๊ธฐ๋„ ํ•ฉ๋‹ˆ๋‹ค.** ์ด ๊ฒฝ์šฐ๋ฅผ ๋น„๋กฏํ•ด ๋งŽ์€ API์—์„œ, ๋ชจ๋ธ์€ ์ˆ˜ํ–‰ํ•  ๋™์ž‘์„ "assistant" ๋ฉ”์‹œ์ง€๋กœ ํฌ๋งทํ•ฉ๋‹ˆ๋‹ค. ์ดํ›„ ์ฑ„ํŒ… ํ…œํ”Œ๋ฆฟ์€ ์ด๋ฅผ ํ•จ์ˆ˜ ํ˜ธ์ถœ์„ ์œ„ํ•œ **ํŠน์ˆ˜ ํ† ํฐ**์œผ๋กœ ํ‘œํ˜„ํ•ฉ๋‹ˆ๋‹ค.

- `[AVAILABLE_TOOLS]` โ€“ ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ๋„๊ตฌ ๋ชฉ๋ก ์‹œ์ž‘
- `[/AVAILABLE_TOOLS]` โ€“ ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ๋„๊ตฌ ๋ชฉ๋ก ์ข…๋ฃŒ
- `[TOOL_CALLS]` โ€“ ๋„๊ตฌ๋ฅผ ํ˜ธ์ถœ(์ฆ‰, **Action** ์ˆ˜ํ–‰)
- `[TOOL_RESULTS]` โ€“ ๋™์ž‘ ๊ฒฐ๊ณผ(โ€œObserveโ€)
- `[/TOOL_RESULTS]` โ€“ ๊ด€์ฐฐ ์ข…๋ฃŒ(๋ชจ๋ธ์ด ๋‹ค์‹œ ๋””์ฝ”๋”ฉํ•  ์ˆ˜ ์žˆ์Œ)

๊ฐ•์˜์—์„œ ํ•จ์ˆ˜ ํ˜ธ์ถœ์„ ๋‹ค์‹œ ๋‹ค๋ฃจ๊ฒ ์ง€๋งŒ, ๋” ๊นŠ์ด ์‚ดํŽด๋ณด๊ณ  ์‹ถ๋‹ค๋ฉด [์ด ๋ฌธ์„œ ์„น์…˜](https://docs.mistral.ai/capabilities/function_calling/)์„ ์ฐธ๊ณ ํ•˜์„ธ์š”.

---
์ด์ œ ํ•จ์ˆ˜ ํ˜ธ์ถœ์ด ๋ฌด์—‡์ด๊ณ  ์–ด๋–ป๊ฒŒ ์ž‘๋™ํ•˜๋Š”์ง€ ๋ฐฐ์› ์œผ๋‹ˆ, ์•„์ง ํ•ด๋‹น ๊ธฐ๋Šฅ์ด ์—†๋Š” ๋ชจ๋ธ์— **ํ•จ์ˆ˜ ํ˜ธ์ถœ ๊ธฐ๋Šฅ์„ ์ถ”๊ฐ€ํ•ด๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค**: [google/gemma-2-2b-it](https://huggingface.co/google/gemma-2-2b-it). ์ƒˆ๋กœ์šด ํŠน์ˆ˜ ํ† ํฐ์„ ๋ชจ๋ธ์— ์ถ”๊ฐ€ํ•ฉ๋‹ˆ๋‹ค.

์ด๋ฅผ ์œ„ํ•ด์„œ๋Š” **๋จผ์ € ๋ฏธ์„ธ ์กฐ์ •๊ณผ LoRA**๋ฅผ ์ดํ•ดํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.