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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def QA_fetch_user(user_cookie, db=DATABASE):
 """ get the user Arguments: user_cookie : str the unique cookie_id for a user Keyword Arguments: db: database for query Returns: list --- [ACCOUNT] """

    collection = DATABASE.account

    return [res for res in collection.find({'user_cookie': user_cookie}, {"_id": 0})]