nonebot发送图片信息

from .data_source import getrandomurl

@on_command('picsending',aliases=('二次元图','美图','二刺螈图','ecyt'))

async def picsending(session: CommandSession):
    pic = await getrandomurl()
    await session.send('Here you are:')
    await session.send(MessageSegment.image(pic))