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from dataclasses import dataclass
import json
from collections.abc import Iterator
import requests
@dataclass
class ToolCall:
id: str
name: str
arguments: dict[str, object]
@dataclass
class LLMResponse:
content: str | None
tool_calls: list[ToolCall]
class LLM:
def __init__(self, url: str) -> None:
self.url = url
def chat(
self,
messages: list[dict[str, object]],
tools: list[dict[str, object]] | None = None,
max_tokens: int = 256,
) -> LLMResponse:
payload: dict[str, object] = {
"messages": messages,
"max_tokens": max_tokens,
"temperature": 0.7,
}
if tools is not None:
payload["tools"] = tools
response = requests.post(
self.url,
json=payload, # type: ignore[arg-type]
)
response.raise_for_status()
data = response.json()
message = data["choices"][0]["message"]
content = message.get("content")
tool_calls: list[ToolCall] = []
for call in message.get("tool_calls", []):
function = call["function"]
tool_calls.append(
ToolCall(
id=call["id"],
name=function["name"],
arguments=json.loads(function["arguments"]),
)
)
return LLMResponse(
content=content,
tool_calls=tool_calls,
)
if __name__ == "__main__":
from tools import ToolRegistry, HelloTool
registry = ToolRegistry()
registry.register(HelloTool())
llm = LLM("http://localhost:8080/v1/chat/completions")
response = llm.chat(
messages=[
{
"role": "user",
"content": "Say hello to Joseph using the hello tool.",
},
],
tools=registry.schemas(),
)
print(response)
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