code: func (cm *ClientManager) updateParams(node *ClientNode, params ServerParams, now mclock.AbsTime) {
  	cm.lock.Lock()
  	defer cm.lock.Unlock()
  
  	cm.updateRecharge(now)
  	cm.updateCapFactor(now, true)
  	cm.totalConnected += params.MinRecharge - node.params.MinRecharge
  	cm.updateNodeRc(node, 0, &params, now)
  }
docs: // updateParams updates the flow control parameters of a client node