litellm - 💡(How to fix) Fix [Bug]: PydanticAI AG-UI Streamed response error 'no provider_url abstract method'

Can't instantiate abstract class LiteLLMStreamedResponse without an implementation for abstract method 'provider_url'

---

from pydantic_ai_litellm import LiteLLMModel

model = LiteLLMModel(
    model_name,
    api_base,
    api_key,
    custom_llm_provider,
)

---

from pydantic_ai import Agent

agent = Agent(
    model,
    instructions='You always respond in Italian.'
)

---

from fastapi import FastAPI
from fastapi.requests import Request
from fastapi.responses import Response
from pydantic_ai.ui.ag_ui import AGUIAdapter

app = FastAPI(title="Pydantic Agent")

@app.get("/health")
def health():
    return {"status": "ok"}

@app.post('/ag-ui')
async def ag_ui(request: Request) -> Response:
    """
    For Streaming
    https://pydantic.dev/docs/ai/integrations/ui/ag-ui/
    """
    return await AGUIAdapter.dispatch_request(request, agent=agent)

---

{"type":"RUN_ERROR","timestamp":1669357945274,"message":"Can't instantiate abstract class LiteLLMStreamedResponse without an implementation for abstract method 'provider_url'"}