My main app code:

from fastapi import FastAPI, HTTPException, Depends
from typing_extensions import Annotated
from sqlalchemy.orm import Session
from pydantic import BaseModel
from database import SessionLocal, engine
import models
from fastapi.middleware.cors import CORSMiddleware

app = FastAPI()

origins = [
    'htpp://localhost:3000'
]

app.app_middleware(
    CORSMiddleware,
    allow_origins=origins,
)

class TransactionBase(BaseModel):
    amount: float
    category: str
    description: str
    is_income: bool
    date: str

class TransactionModel(TransactionBase):
    id: int

    class config:
        orm_mode = True
    
def get_db():
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()

db_dependency = Annotated[Session, Depends(get_db)]

models.Base.metadata.create_all(bind=engine)

@app.post("/transactions/", response_model=TransactionModel)
async def create_transaction(transaction: TransactionBase, db: db_dependency):
    db_transaction = models.Transaction(**transaction.dict())
    db.add(db_transaction)
    db.commit()
    db.refresh(db_transaction)
    return db_transaction

Im trying to make fastapi application using sqlalchemy database, but after reloading uvirocn main app terminal show me this error:

Process SpawnProcess-1:
Traceback (most recent call last):
  File "/home/przemek/.pyenv/versions/3.6.15/lib/python3.6/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/home/przemek/.pyenv/versions/3.6.15/lib/python3.6/multiprocessing/process.py", line 93, in run
    self._target(*self._args, **self._kwargs)
  File "/home/przemek/FastAPI-React-App/env/lib/python3.6/site-packages/uvicorn/subprocess.py", line 76, in subprocess_started
    target(sockets=sockets)
  File "/home/przemek/FastAPI-React-App/env/lib/python3.6/site-packages/uvicorn/server.py", line 67, in run
    return asyncio.run(self.serve(sockets=sockets))
AttributeError: module 'asyncio' has no attribute 'run'

Im using virtual environment with python 3.10.12.

I was expecting a start of localhost on port 3000 in my browser.