code: async def set_playstate(self, state, pos=0):
          
          url = '{}/Sessions/{}/Playing/{}'.format(
              self.server.construct_url(API_URL), self.session_id, state)
          params = {'api_key': self.server.api_key}
  
          if state == 'seek':
              params['SeekPositionTicks'] = int(pos * 10000000)
              params['static'] = 'true'
  
          _LOGGER.debug('Playstate URL: %s', url)
  
          post = await self.server.api_post(url, params)
          if post is None:
              _LOGGER.debug('Error sending command.')
          else:
              _LOGGER.debug('Post response: %s', post)
docs: Send media commands to server.