code: def write_data(self, write_finished_cb):
          
          self._write_finished_cb = write_finished_cb
          data = bytearray()
  
          for poly4D in self.poly4Ds:
              data += struct.pack('<ffffffff', *poly4D.x.values)
              data += struct.pack('<ffffffff', *poly4D.y.values)
              data += struct.pack('<ffffffff', *poly4D.z.values)
              data += struct.pack('<ffffffff', *poly4D.yaw.values)
              data += struct.pack('<f', poly4D.duration)
  
          self.mem_handler.write(self, 0x00, data, flush_queue=True)
docs: Write trajectory data to the Crazyflie