code: func (c *Client) LoadTxFilter(reload bool, addresses []btcutil.Address, outPoints []wire.OutPoint) error {
  	return c.LoadTxFilterAsync(reload, addresses, outPoints).Receive()
  }
docs: // LoadTxFilter loads, reloads, or adds data to a websocket client's transaction
  // filter.  The filter is consistently updated based on inspected transactions
  // during mempool acceptance, block acceptance, and for all rescanned blocks.
  //
  // NOTE: This is a btcd extension ported from github.com/decred/dcrrpcclient
  // and requires a websocket connection.