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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 check_client_ip(self, rule):
 """If a client IP is specified, verify it is permitted."""


        if not rule.get('from'):
            self.logdebug('no "from" requirement.\n')
            return True

        allow_from = rule.get('from')
        if not isinstance(allow_from, list):
            allow_from = [allow_from]
        client_ip = self.get_client_ip()

        if client_ip in allow_from:
            self.logdebug('client_ip %s in %s\n' % (client_ip, allow_from))
            return True
        else:
            self.logdebug('client_ip %s not in %s' % (client_ip, allow_from))
            return False