代理模式保护代理

def solve():
    class SecretResource:
        def read_data(____):
            return '____'
    class ProtectedProxy:
        def __init__(____):
            self._resource = SecretResource()
            self._role = role
        def read_data(____):
            if self._role == '____':
                return self._resource.read_data()
            return '____'
    admin = ProtectedProxy(____)
    guest = ProtectedProxy(____)
    print(____)