code: func (c *RPCClient) Stop(handle StreamHandle) error {
  	// Deregister locally first to stop delivery
  	c.deregisterHandler(uint64(handle))
  
  	header := requestHeader{
  		Command: stopCommand,
  		Seq:     c.getSeq(),
  	}
  	req := stopRequest{
  		Stop: uint64(handle),
  	}
  	return c.genericRPC(&header, &req, nil)
  }
docs: // Stop is used to unsubscribe from logs or event streams