实现资金预占冻结资金

def solve():
    from pyodide.http import open_url
    account_types_csv = open_url(____).read()
    payment_channels_csv = open_url(____).read()
    transfer_types_csv = open_url(____).read()
    transaction_limits_csv = open_url(____).read()
    accounts_csv = open_url(____).read()
    transfers_csv = open_url(____).read()
    amount_reservations_csv = open_url(____).read()
    fraud_rules_csv = open_url(____).read()
    import sqlite3, pandas as pd
    from io import StringIO
    conn = sqlite3.connect(____)
    pd.read_csv(StringIO(____)).to_sql(____)
    acc_id, reserve = ____, ____
    before = pd.read_sql_query("____", conn, params=(____)).iloc[____]
    conn.execute("____", (____))
    conn.commit()
    after = pd.read_sql_query("____", conn, params=(____)).iloc[____]
    print(____)
    print(____)
    print(____)
    conn.close()