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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 _agent_notification_bulk(self, context, method, routers, hosting_device, operation):
 """Notify the Cisco cfg agent handling a particular hosting_device. A single notification can contain multiple routers. """

        admin_context = context.is_admin and context or context.elevated()
        dmplugin = bc.get_plugin(cisco_constants.DEVICE_MANAGER)
        if (hosting_device is not None and extensions.is_extension_supported(
                dmplugin, CFGAGENT_SCHED)):
            agents = dmplugin.get_cfg_agents_for_hosting_devices(
                admin_context, [hosting_device['id']], admin_state_up=True,
                schedule=True)
            if agents:
                agent = agents[0]
                LOG.debug('Notify %(agent_type)s at %(topic)s.%(host)s the '
                          'message %(method)s [BULK]',
                          {'agent_type': agent.agent_type,
                           'topic': CFG_AGENT_L3_ROUTING,
                           'host': agent.host,
                           'method': method})
                cctxt = self.client.prepare(server=agent.host,
                                            version='1.1')
                cctxt.cast(context, method, routers=routers)