Cannot support motor time zone problem about odmantic HOT 2 OPEN

from datetime import datetime
from typing import List
from zoneinfo import ZoneInfo

import uvicorn
from fastapi import FastAPI, HTTPException
from motor.motor_asyncio import AsyncIOMotorClient
from odmantic import AIOEngine, Model, ObjectId, Field, EmbeddedModel

client = AsyncIOMotorClient(
    f'mongodb://127.0.0.1',
)


def model_to_tz(d, tz='Asia/Shanghai'):
    """多维/嵌套字典数据无限遍历"""
    data = d.dict() if isinstance(d, Model) else d
    if isinstance(data, dict):
        for i in range(len(data)):
            temp_key = list(data.keys())[i]
            temp_value = data[temp_key]
            if isinstance(temp_value, datetime):
                offset = temp_value.astimezone(ZoneInfo(tz)).utcoffset()
                n = temp_value + offset
                data.update({temp_key: n})
            model_to_tz(temp_value)  # 自我调用实现无限遍历
    return data


def list_model_to_tz(ds, tz='Asia/Shanghai'):
    res = []
    for d in ds:
        res.append(model_to_tz(d, tz))
    return res


class Detail(EmbeddedModel):
    d_at: datetime = Field(default_factory=datetime.utcnow)


class Body(EmbeddedModel):
    detail: Detail = Field(default={})
    b_at: datetime = Field(default_factory=datetime.utcnow)


class Tree(Model):
    name: str
    body: Body = Field(default={})
    c_at: datetime = Field(default_factory=datetime.utcnow)
    u_at: datetime = Field(default=None)


app = FastAPI()

engine = AIOEngine(client)


@app.put("/trees/", response_model=Tree)
async def create(tree: Tree):
    await engine.save(tree)
    return tree


@app.put("/trees/update", response_model=Tree)
async def update(tree: Tree):
    t = await engine.find_one(Tree, Tree.id == tree.id)
    if tree is None:
        raise HTTPException(404)
    t.u_at = datetime.utcnow()
    await engine.save(t)
    return t


@app.get("/trees/", response_model=List[Tree])
async def get_trees():
    trees = await engine.find(Tree)
    return list_model_to_tz(trees)


@app.get("/trees/count", response_model=int)
async def count_trees():
    count = await engine.count(Tree)
    return count


@app.get("/trees/{id}", response_model=Tree)
async def get_tree_by_id(id: ObjectId):
    tree = await engine.find_one(Tree, Tree.id == id)
    if tree is None:
        raise HTTPException(404)
    return tree


if __name__ == '__main__':
    uvicorn.run(
        app,
        host="0.0.0.0",
        port=3600,
        log_level="info"
    )