code: async def playstatus(self, use_revision=False, timeout=None):
          
          cmd_url = _PSU_CMD.format(
              self.playstatus_revision if use_revision else 0)
          resp = await self.daap.get(cmd_url, timeout=timeout)
          self.playstatus_revision = parser.first(resp, 'cmst', 'cmsr')
          return resp
docs: Request raw data about what is currently playing.
  
          If use_revision=True, this command will "block" until playstatus
          changes on the device.
  
          Must be logged in.