Update an object with current info.

async def update(self):
        '''Update an object with current info.'''
        if self.client.session.closed:
            async with core.Client() as client:
                data = await client.request(self.url)
        else:
            data = await self.client.request(self.url)

        self.raw_data = data
        self.from_data(data)

        return self