获取并将MongoDB自动生成的UUID插入当前记录

Question

我需要将MongoDB自动生成的UUID插入我的另一列，如下面的代码，

try:
    conn = MongoClient('localhost', 27017)
    print("Connected successfully!!!")
except:
    print("Could not connect to MongoDB")

# database
db = conn.hash
# Created or Switched to collection names: my_gfg_collection
collection = db.ib
unix = datetime.utcnow()
unixtime = calendar.timegm(unix.utctimetuple())

emp_rec1 = {
    "tib" : "8f7074d8-a520-4f7d-b2d3-09dc36acb5fd",
    "tib_name" : "TPEMAIL",
    "mail_box_name" : "Test Gmail",
    "id_mail_box" : "use here when generate to UUID v4 - MONGO",          
}
# Insert Data
    rec_id1 = collection.insert_one(emp_rec1)

如上面的代码所示，我需要将自动生成的UUID（_id：5b5a36d40abd950a88003fc3）插入我的id_mail_box列中。