<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 async def set_agent(self, msg, context):
 """Mark a client as the RPC agent for a service."""


        service = msg.get('name')
        client = context.user_data

        self.service_manager.set_agent(service, client)