import json

class Connection:
    def __init__(self, reader, writer):
        self.reader = reader
        self.writer = writer

    async def send(self, packet):
        data = (json.dumps(packet) + "\n").encode()
        self.writer.write(data)
        await self.writer.drain()

    async def close(self):
        self.writer.close()
        await self.writer.wait_closed()